Turnoff the display without letting the device to go into sleep in Windows 8

How to turn of the display in Windows 8 without locking or making computer go to sleep ?

The problem is that when I enable Turn off display after x minutes feature from control panel, the device goes into sleep after x minutes. It seems that both the options turn off display/put computer to sleep are connected. It devices goes automatically to sleep mode as soon as the display is turned off. So, is there any method to turn off the display of the device without it going into sleep mode ? Also, whenever the display turns off, the device automatically locks. So, is there a way by which I can disable it ?

My objective is to turn off the display and keep the system running.

Thanks

December 7th, 2012 12:00pm

Hello,

Try this:

  1. Press WindowsKey+W and type 'power' (without quotes) and click Choose when to turn off display.
  2. In the Edit Plan Settings window click Change advanced power settings.
  3. In the Power Options dialog box scroll down to Sleep\Sleep after\Setting (Minutes) and type Never (or you might type 0)
  4. Then drill to Display\Turn off display after\Setting and set the timeout to turn off display there.

Please notify if it helps or not.

Than

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December 7th, 2012 12:38pm

Hi,

I am not able to see the 'Choose when to turn off display' setting. By default, it is not present. Also, when I put turn display off after x min to some value, that value becomes the time after which the device will sleep. As in, both are interconnected. Changing one value automatically modifies the other value.

Thanks

December 7th, 2012 1:02pm

I am not able to see the 'Choose when to turn off display' setting.


Try finding  Screen Saver.   What do you have in there?   And there is a link to the Power Options from it.   Who knew?   ;  }
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December 7th, 2012 6:58pm

Okay, could you please confirm that you at least can reach the Power Options dialog box for the power plan which settings you are about to change?

enter image description here

(Picture courtesy of http://superuser.com/questions/497983/windows-8-waking-issues-maintenance-configurator-task-cannot-be-changed-or-d  )

December 9th, 2012 3:59pm

Try to upgrade the BIOS and see if it helps.
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December 11th, 2012 7:02am

I haven't seen a useful reply to this yet. 

I am setting up a Samsung XE500T1C-A02 tablet with Windows 8 to do unattended data logging (taking advantage of the lower power used by the processor in the tablet), and it shows the same problem.   I have seen many suggestions for going into Power Options and changing the respective display and sleep timeouts, with minimal recognition that changing one will change the other whether you want it to or not.    Is this a problem only in some installations of Windows 8, or is it universal, with many users not recognizing that "display off" means "sleep"?

When I run Power troubleshooter to optimize power consumption, it of course changes my "display off" to a few minutes, but "sleep" changes to the same value at the same time, so it's not just my personal approach to making changes.   In addition, using powercfg.exe to make changes also results in the "display off" and "sleep" times changing in lock step. 

 So, how do I separate the "turn off display after...." function from the tablet's sleep function?  Did you ever find a solution?  Samsung tech support claims it is a Windows 8 issue.


  • Edited by nhp_dfo Wednesday, February 06, 2013 11:16 PM
February 6th, 2013 11:09pm

Hello,

open an elevated cmd prompt and run powercfg /query >power.txt

Open power.txt and post the results

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February 7th, 2013 12:23am

Here it is, Darrell.   Fascinating to my untutored eye; many settings not available in the GUI as I can tell, but there just the same.   Display and sleep both seem to have different readings from the "Never" for both that Power Options showed just previous to doing this.   For now, it is the AC power settings that I am trying to modify, though eventually will want to modify the DC settings as well.

Thanks for any guidance you can offer.

*****************************

Power Scheme GUID: e26d8997-5311-49ea-acb9-03aad4d86f7d  (meteo_t)
  Subgroup GUID: fea3413e-7e05-4911-9a71-700331f1c294  (Settings belonging to no subgroup)
    GUID Alias: SUB_NONE
    Power Setting GUID: 0e796bdb-100d-47d6-a2d5-f7d2daa51f51  (Require a password on wakeup)
      GUID Alias: CONSOLELOCK
      Possible Setting Index: 000
      Possible Setting Friendly Name: No
      Possible Setting Index: 001
      Possible Setting Friendly Name: Yes
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 0012ee47-9041-4b5d-9b77-535fba8b1442  (Hard disk)
    GUID Alias: SUB_DISK
    Power Setting GUID: 6738e2c4-e8a5-4a42-b16a-e040e769756e  (Turn off hard disk after)
      GUID Alias: DISKIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x0000001e
    Current DC Power Setting Index: 0x0000001e

  Subgroup GUID: 02f815b5-a5cf-4c84-bf20-649d1f75d3d8  (Internet Explorer)
    Power Setting GUID: 4c793e7d-a264-42e1-87d3-7a0d2f523ccd  (JavaScript Timer Frequency)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Maximum Power Savings
      Possible Setting Index: 001
      Possible Setting Friendly Name: Maximum Performance
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 0d7dbae2-4294-402a-ba8e-26777e8488cd  (Desktop background settings)
    Power Setting GUID: 309dce9b-bef4-4119-9921-a851fb12f0f4  (Slide show)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Available
      Possible Setting Index: 001
      Possible Setting Friendly Name: Paused
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

  Subgroup GUID: 19cbb8fa-5279-450e-9fac-8a3d5fedd0c1  (Wireless Adapter Settings)
    Power Setting GUID: 12bbebe6-58d6-4636-95bb-3217ef867c1a  (Power Saving Mode)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Maximum Performance
      Possible Setting Index: 001
      Possible Setting Friendly Name: Low Power Saving
      Possible Setting Index: 002
      Possible Setting Friendly Name: Medium Power Saving
      Possible Setting Index: 003
      Possible Setting Friendly Name: Maximum Power Saving
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000002

  Subgroup GUID: 238c9fa8-0aad-41ed-83f4-97be242c8f20  (Sleep)
    GUID Alias: SUB_SLEEP
    Power Setting GUID: 29f6c1db-86da-48c5-9fdb-f2b67b1f44da  (Sleep after)
      GUID Alias: STANDBYIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x000000b4
    Current DC Power Setting Index: 0x00000384

    Power Setting GUID: 94ac6d29-73ce-41a6-809f-6363ba21b47e  (Allow hybrid sleep)
      GUID Alias: HYBRIDSLEEP
      Possible Setting Index: 000
      Possible Setting Friendly Name: Off
      Possible Setting Index: 001
      Possible Setting Friendly Name: On
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: 9d7815a6-7ee4-497e-8888-515a05f02364  (Hibernate after)
      GUID Alias: HIBERNATEIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: bd3b718a-0680-4d9d-8ab2-e1d2b4ac806d  (Allow wake timers)
      GUID Alias: RTCWAKE
      Possible Setting Index: 000
      Possible Setting Friendly Name: Disable
      Possible Setting Index: 001
      Possible Setting Friendly Name: Enable
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 2a737441-1930-4402-8d77-b2bebba308a3  (USB settings)
    Power Setting GUID: 48e6b7a6-50f5-4782-a5d4-53bb8f07e226  (USB selective suspend setting)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Disabled
      Possible Setting Index: 001
      Possible Setting Friendly Name: Enabled
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

  Subgroup GUID: 2e601130-5351-4d9d-8e04-252966bad054  (Idle Resiliency)
    GUID Alias: SUB_IR
  Subgroup GUID: 48df9d60-4f68-11dc-8314-0800200c9a66  (Intel(R) Dynamic Platform & Thermal Framework Settings)
    Power Setting GUID: 07029cd8-4664-4698-95d8-43b2e9666596  (Config TDP Level)
      Possible Setting Index: 000
      Possible Setting Friendly Name: High TDP
      Possible Setting Index: 001
      Possible Setting Friendly Name: Nominal TDP
      Possible Setting Index: 002
      Possible Setting Friendly Name: Low TDP
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: 4a44b800-4f72-11dc-8314-0800200c9a66  (Power Limit)
      Minimum Possible Setting: 0x00000001
      Maximum Possible Setting: 0x00000005
      Possible Settings increment: 0x00000001
      Possible Settings units: Level
    Current AC Power Setting Index: 0x00000003
    Current DC Power Setting Index: 0x00000003

    Power Setting GUID: 63c39116-4f72-11dc-8314-0800200c9a66  (Acoustics Limit)
      Minimum Possible Setting: 0x00000001
      Maximum Possible Setting: 0x00000005
      Possible Settings increment: 0x00000001
      Possible Settings units: Level
    Current AC Power Setting Index: 0x00000003
    Current DC Power Setting Index: 0x00000003

    Power Setting GUID: b29c73e0-1a8b-46fd-b4ae-1ce5a3d6d871  (Low Power Mode Setting)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Disable
      Possible Setting Index: 001
      Possible Setting Friendly Name: Enable
      Possible Setting Index: 002
      Possible Setting Friendly Name: Application Specific
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 4f971e89-eebd-4455-a8de-9e59040e7347  (Power buttons and lid)
    GUID Alias: SUB_BUTTONS
    Power Setting GUID: 5ca83367-6e45-459f-a27b-476b1d01c936  (Lid close action)
      GUID Alias: LIDACTION
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: 7648efa3-dd9c-4e3e-b566-50f929386280  (Power button action)
      GUID Alias: PBUTTONACTION
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000003
    Current DC Power Setting Index: 0x00000003

    Power Setting GUID: 96996bc0-ad50-47ec-923b-6f41874dd9eb  (Sleep button action)
      GUID Alias: SBUTTONACTION
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: a7066653-8d6c-40a8-910e-a1f54b84c7e5  (Start menu power button)
      GUID Alias: UIBUTTON_ACTION
      Possible Setting Index: 000
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 001
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 002
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 501a4d13-42af-4429-9fd1-a8218c268e20  (PCI Express)
    GUID Alias: SUB_PCIEXPRESS
    Power Setting GUID: ee12f906-d277-404b-b6da-e5fa1a576df5  (Link State Power Management)
      GUID Alias: ASPM
      Possible Setting Index: 000
      Possible Setting Friendly Name: Off
      Possible Setting Index: 001
      Possible Setting Friendly Name: Moderate power savings
      Possible Setting Index: 002
      Possible Setting Friendly Name: Maximum power savings
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000002

  Subgroup GUID: 54533251-82be-4824-96c1-47b60b740d00  (Processor power management)
    GUID Alias: SUB_PROCESSOR
    Power Setting GUID: 893dee8e-2bef-41e0-89c6-b55d0929964c  (Minimum processor state)
      GUID Alias: PROCTHROTTLEMIN
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000014
    Current DC Power Setting Index: 0x00000014

    Power Setting GUID: 94d3a615-a899-4ac5-ae2b-e4d8f634367f  (System cooling policy)
      GUID Alias: SYSCOOLPOL
      Possible Setting Index: 000
      Possible Setting Friendly Name: Passive
      Possible Setting Index: 001
      Possible Setting Friendly Name: Active
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: bc5038f7-23e0-4960-96da-33abaf5935ec  (Maximum processor state)
      GUID Alias: PROCTHROTTLEMAX
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000064
    Current DC Power Setting Index: 0x00000064

  Subgroup GUID: 7516b95f-f776-4464-8c53-06167f40cc99  (Display)
    GUID Alias: SUB_VIDEO
    Power Setting GUID: 17aaa29b-8b43-4b94-aafe-35f64daaf1ee  (Dim display after)
      GUID Alias: VIDEODIM
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x00000078
    Current DC Power Setting Index: 0x00000078

    Power Setting GUID: 3c0bc021-c8a8-4e07-a973-6b14cbcb2b7e  (Turn off display after)
      GUID Alias: VIDEOIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: 8ec4b3a5-6868-48c2-be75-4f3044be88a7  (Console lock display off timeout)
      GUID Alias: VIDEOCONLOCK
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x0000003c
    Current DC Power Setting Index: 0x0000001e

    Power Setting GUID: aded5e82-b909-4619-9949-f5d71dac0bcb  (Display brightness)
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x0000003c
    Current DC Power Setting Index: 0x00000028

    Power Setting GUID: f1fbfde2-a960-4165-9f88-50667911ce96  (Dimmed display brightness)
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: fbd9aa66-9553-4097-ba44-ed6e9d65eab8  (Enable adaptive brightness)
      GUID Alias: ADAPTBRIGHT
      Possible Setting Index: 000
      Possible Setting Friendly Name: Off
      Possible Setting Index: 001
      Possible Setting Friendly Name: On
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 8619b916-e004-4dd8-9b66-dae86f806698  (Presence Aware Power Behavior)
    GUID Alias: SUB_PRESENCE
  Subgroup GUID: 9596fb26-9850-41fd-ac3e-f7c3c00afd4b  (Multimedia settings)
    Power Setting GUID: 03680956-93bc-4294-bba6-4e0f09bb717f  (When sharing media)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Allow the computer to sleep
      Possible Setting Index: 001
      Possible Setting Friendly Name: Prevent idling to sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Allow the computer to enter Away Mode
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: 34c7b99f-9a6d-4b3c-8dc7-b6693b78cef4  (When playing video)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Optimize video quality
      Possible Setting Index: 001
      Possible Setting Friendly Name: Balanced
      Possible Setting Index: 002
      Possible Setting Friendly Name: Optimize power savings
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000001

  Subgroup GUID: e73a048d-bf27-4f12-9731-8b2076e8891f  (Battery)
    GUID Alias: SUB_BATTERY
    Power Setting GUID: 637ea02f-bbcb-4015-8e2c-a1c7b9c0b546  (Critical battery action)
      GUID Alias: BATACTIONCRIT
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000002

    Power Setting GUID: 8183ba9a-e910-48da-8769-14ae6dc1170a  (Low battery level)
      GUID Alias: BATLEVELLOW
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000006
    Current DC Power Setting Index: 0x00000006

    Power Setting GUID: 9a66d8d7-4ff7-4ef9-b5a2-5a326ca2a469  (Critical battery level)
      GUID Alias: BATLEVELCRIT
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000002
    Current DC Power Setting Index: 0x00000002

    Power Setting GUID: bcded951-187b-4d05-bccc-f7e51960c258  (Low battery notification)
      GUID Alias: BATFLAGSLOW
      Possible Setting Index: 000
      Possible Setting Friendly Name: Off
      Possible Setting Index: 001
      Possible Setting Friendly Name: On
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: d8742dcb-3e6a-4b3c-b3fe-374623cdcf06  (Low battery action)
      GUID Alias: BATACTIONLOW
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: f3c5027d-cd16-4930-aa6b-90db844a8f00  (Reserve battery level)
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000004
    Current DC Power Setting Index: 0x00000004

 

February 7th, 2013 8:29pm

Hello,

So this should be the power scheme you are using.

Display is set to zero seconds and Sleep should occur after three minutes.

try setting the monitor to 2 minutes like this:

powercfg /change /monitor-timeout-ac 2

Run powercfg /query >power.txt and report back so we can see if it changed 

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February 8th, 2013 2:50am

OK, this is pretty interesting.   I'd used the "/change monitor-timeout-ac" switch in pwercfg before, and figured it didn't work because after I'd made the change, the "Power Options" window would show that "sleep after" had also changed to the value to which I'd changed "monitor-timeout-ac".   It did this time too, but this time, I actually monitored what happened.  The display went blank after two minutes, but the tablet did not sleep either at 3 minutes (something else fishy here; why should Power Options window say "Never" sleep, and powercfg consistently say 3 minutes?), or for at least the next 30 minutes, as evidenced by recording a GPS string with timestamp while the display was off.   Unfortunately, rebooting the tablet restored the condition that the Power Options window actually shows....both the "display off" and "sleep after" are at two minutes, and I'm back to the tablet hitting the sack at two minutes.  So, I've still got to find a way to make this change stick to "display off" only, or, much better, make the Power Options window work properly and reliably.

Here's the powercfg readout after the change had been made, (yep, two minutes), but before rebooting.  (a second read of powercfg showed the same information on at least on the display and sleep parameters after rebooting):

Power Scheme GUID: e26d8997-5311-49ea-acb9-03aad4d86f7d  (meteo_t)
  Subgroup GUID: fea3413e-7e05-4911-9a71-700331f1c294  (Settings belonging to no subgroup)
    GUID Alias: SUB_NONE
    Power Setting GUID: 0e796bdb-100d-47d6-a2d5-f7d2daa51f51  (Require a password on wakeup)
      GUID Alias: CONSOLELOCK
      Possible Setting Index: 000
      Possible Setting Friendly Name: No
      Possible Setting Index: 001
      Possible Setting Friendly Name: Yes
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 0012ee47-9041-4b5d-9b77-535fba8b1442  (Hard disk)
    GUID Alias: SUB_DISK
    Power Setting GUID: 6738e2c4-e8a5-4a42-b16a-e040e769756e  (Turn off hard disk after)
      GUID Alias: DISKIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x0000001e
    Current DC Power Setting Index: 0x0000001e

  Subgroup GUID: 02f815b5-a5cf-4c84-bf20-649d1f75d3d8  (Internet Explorer)
    Power Setting GUID: 4c793e7d-a264-42e1-87d3-7a0d2f523ccd  (JavaScript Timer Frequency)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Maximum Power Savings
      Possible Setting Index: 001
      Possible Setting Friendly Name: Maximum Performance
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 0d7dbae2-4294-402a-ba8e-26777e8488cd  (Desktop background settings)
    Power Setting GUID: 309dce9b-bef4-4119-9921-a851fb12f0f4  (Slide show)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Available
      Possible Setting Index: 001
      Possible Setting Friendly Name: Paused
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

  Subgroup GUID: 19cbb8fa-5279-450e-9fac-8a3d5fedd0c1  (Wireless Adapter Settings)
    Power Setting GUID: 12bbebe6-58d6-4636-95bb-3217ef867c1a  (Power Saving Mode)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Maximum Performance
      Possible Setting Index: 001
      Possible Setting Friendly Name: Low Power Saving
      Possible Setting Index: 002
      Possible Setting Friendly Name: Medium Power Saving
      Possible Setting Index: 003
      Possible Setting Friendly Name: Maximum Power Saving
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000002

  Subgroup GUID: 238c9fa8-0aad-41ed-83f4-97be242c8f20  (Sleep)
    GUID Alias: SUB_SLEEP
    Power Setting GUID: 29f6c1db-86da-48c5-9fdb-f2b67b1f44da  (Sleep after)
      GUID Alias: STANDBYIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x000000b4
    Current DC Power Setting Index: 0x00000384

    Power Setting GUID: 94ac6d29-73ce-41a6-809f-6363ba21b47e  (Allow hybrid sleep)
      GUID Alias: HYBRIDSLEEP
      Possible Setting Index: 000
      Possible Setting Friendly Name: Off
      Possible Setting Index: 001
      Possible Setting Friendly Name: On
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: 9d7815a6-7ee4-497e-8888-515a05f02364  (Hibernate after)
      GUID Alias: HIBERNATEIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: bd3b718a-0680-4d9d-8ab2-e1d2b4ac806d  (Allow wake timers)
      GUID Alias: RTCWAKE
      Possible Setting Index: 000
      Possible Setting Friendly Name: Disable
      Possible Setting Index: 001
      Possible Setting Friendly Name: Enable
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 2a737441-1930-4402-8d77-b2bebba308a3  (USB settings)
    Power Setting GUID: 48e6b7a6-50f5-4782-a5d4-53bb8f07e226  (USB selective suspend setting)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Disabled
      Possible Setting Index: 001
      Possible Setting Friendly Name: Enabled
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

  Subgroup GUID: 2e601130-5351-4d9d-8e04-252966bad054  (Idle Resiliency)
    GUID Alias: SUB_IR
  Subgroup GUID: 48df9d60-4f68-11dc-8314-0800200c9a66  (Intel(R) Dynamic Platform & Thermal Framework Settings)
    Power Setting GUID: 07029cd8-4664-4698-95d8-43b2e9666596  (Config TDP Level)
      Possible Setting Index: 000
      Possible Setting Friendly Name: High TDP
      Possible Setting Index: 001
      Possible Setting Friendly Name: Nominal TDP
      Possible Setting Index: 002
      Possible Setting Friendly Name: Low TDP
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: 4a44b800-4f72-11dc-8314-0800200c9a66  (Power Limit)
      Minimum Possible Setting: 0x00000001
      Maximum Possible Setting: 0x00000005
      Possible Settings increment: 0x00000001
      Possible Settings units: Level
    Current AC Power Setting Index: 0x00000003
    Current DC Power Setting Index: 0x00000003

    Power Setting GUID: 63c39116-4f72-11dc-8314-0800200c9a66  (Acoustics Limit)
      Minimum Possible Setting: 0x00000001
      Maximum Possible Setting: 0x00000005
      Possible Settings increment: 0x00000001
      Possible Settings units: Level
    Current AC Power Setting Index: 0x00000003
    Current DC Power Setting Index: 0x00000003

    Power Setting GUID: b29c73e0-1a8b-46fd-b4ae-1ce5a3d6d871  (Low Power Mode Setting)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Disable
      Possible Setting Index: 001
      Possible Setting Friendly Name: Enable
      Possible Setting Index: 002
      Possible Setting Friendly Name: Application Specific
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 4f971e89-eebd-4455-a8de-9e59040e7347  (Power buttons and lid)
    GUID Alias: SUB_BUTTONS
    Power Setting GUID: 5ca83367-6e45-459f-a27b-476b1d01c936  (Lid close action)
      GUID Alias: LIDACTION
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: 7648efa3-dd9c-4e3e-b566-50f929386280  (Power button action)
      GUID Alias: PBUTTONACTION
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000003
    Current DC Power Setting Index: 0x00000003

    Power Setting GUID: 96996bc0-ad50-47ec-923b-6f41874dd9eb  (Sleep button action)
      GUID Alias: SBUTTONACTION
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: a7066653-8d6c-40a8-910e-a1f54b84c7e5  (Start menu power button)
      GUID Alias: UIBUTTON_ACTION
      Possible Setting Index: 000
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 001
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 002
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 501a4d13-42af-4429-9fd1-a8218c268e20  (PCI Express)
    GUID Alias: SUB_PCIEXPRESS
    Power Setting GUID: ee12f906-d277-404b-b6da-e5fa1a576df5  (Link State Power Management)
      GUID Alias: ASPM
      Possible Setting Index: 000
      Possible Setting Friendly Name: Off
      Possible Setting Index: 001
      Possible Setting Friendly Name: Moderate power savings
      Possible Setting Index: 002
      Possible Setting Friendly Name: Maximum power savings
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000002

  Subgroup GUID: 54533251-82be-4824-96c1-47b60b740d00  (Processor power management)
    GUID Alias: SUB_PROCESSOR
    Power Setting GUID: 893dee8e-2bef-41e0-89c6-b55d0929964c  (Minimum processor state)
      GUID Alias: PROCTHROTTLEMIN
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000014
    Current DC Power Setting Index: 0x00000014

    Power Setting GUID: 94d3a615-a899-4ac5-ae2b-e4d8f634367f  (System cooling policy)
      GUID Alias: SYSCOOLPOL
      Possible Setting Index: 000
      Possible Setting Friendly Name: Passive
      Possible Setting Index: 001
      Possible Setting Friendly Name: Active
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: bc5038f7-23e0-4960-96da-33abaf5935ec  (Maximum processor state)
      GUID Alias: PROCTHROTTLEMAX
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000064
    Current DC Power Setting Index: 0x00000064

  Subgroup GUID: 7516b95f-f776-4464-8c53-06167f40cc99  (Display)
    GUID Alias: SUB_VIDEO
    Power Setting GUID: 17aaa29b-8b43-4b94-aafe-35f64daaf1ee  (Dim display after)
      GUID Alias: VIDEODIM
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x0000003c
    Current DC Power Setting Index: 0x00000078

    Power Setting GUID: 3c0bc021-c8a8-4e07-a973-6b14cbcb2b7e  (Turn off display after)
      GUID Alias: VIDEOIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x00000078
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: 8ec4b3a5-6868-48c2-be75-4f3044be88a7  (Console lock display off timeout)
      GUID Alias: VIDEOCONLOCK
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x0000003c
    Current DC Power Setting Index: 0x0000001e

    Power Setting GUID: aded5e82-b909-4619-9949-f5d71dac0bcb  (Display brightness)
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x0000003c
    Current DC Power Setting Index: 0x00000028

    Power Setting GUID: f1fbfde2-a960-4165-9f88-50667911ce96  (Dimmed display brightness)
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: fbd9aa66-9553-4097-ba44-ed6e9d65eab8  (Enable adaptive brightness)
      GUID Alias: ADAPTBRIGHT
      Possible Setting Index: 000
      Possible Setting Friendly Name: Off
      Possible Setting Index: 001
      Possible Setting Friendly Name: On
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

  Subgroup GUID: 8619b916-e004-4dd8-9b66-dae86f806698  (Presence Aware Power Behavior)
    GUID Alias: SUB_PRESENCE
  Subgroup GUID: 9596fb26-9850-41fd-ac3e-f7c3c00afd4b  (Multimedia settings)
    Power Setting GUID: 03680956-93bc-4294-bba6-4e0f09bb717f  (When sharing media)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Allow the computer to sleep
      Possible Setting Index: 001
      Possible Setting Friendly Name: Prevent idling to sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Allow the computer to enter Away Mode
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: 34c7b99f-9a6d-4b3c-8dc7-b6693b78cef4  (When playing video)
      Possible Setting Index: 000
      Possible Setting Friendly Name: Optimize video quality
      Possible Setting Index: 001
      Possible Setting Friendly Name: Balanced
      Possible Setting Index: 002
      Possible Setting Friendly Name: Optimize power savings
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000001

  Subgroup GUID: e73a048d-bf27-4f12-9731-8b2076e8891f  (Battery)
    GUID Alias: SUB_BATTERY
    Power Setting GUID: 637ea02f-bbcb-4015-8e2c-a1c7b9c0b546  (Critical battery action)
      GUID Alias: BATACTIONCRIT
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000002

    Power Setting GUID: 8183ba9a-e910-48da-8769-14ae6dc1170a  (Low battery level)
      GUID Alias: BATLEVELLOW
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000006
    Current DC Power Setting Index: 0x00000006

    Power Setting GUID: 9a66d8d7-4ff7-4ef9-b5a2-5a326ca2a469  (Critical battery level)
      GUID Alias: BATLEVELCRIT
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000002
    Current DC Power Setting Index: 0x00000002

    Power Setting GUID: bcded951-187b-4d05-bccc-f7e51960c258  (Low battery notification)
      GUID Alias: BATFLAGSLOW
      Possible Setting Index: 000
      Possible Setting Friendly Name: Off
      Possible Setting Index: 001
      Possible Setting Friendly Name: On
    Current AC Power Setting Index: 0x00000001
    Current DC Power Setting Index: 0x00000001

    Power Setting GUID: d8742dcb-3e6a-4b3c-b3fe-374623cdcf06  (Low battery action)
      GUID Alias: BATACTIONLOW
      Possible Setting Index: 000
      Possible Setting Friendly Name: Do nothing
      Possible Setting Index: 001
      Possible Setting Friendly Name: Sleep
      Possible Setting Index: 002
      Possible Setting Friendly Name: Hibernate
      Possible Setting Index: 003
      Possible Setting Friendly Name: Shut down
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000

    Power Setting GUID: f3c5027d-cd16-4930-aa6b-90db844a8f00  (Reserve battery level)
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0x00000064
      Possible Settings increment: 0x00000001
      Possible Settings units: %
    Current AC Power Setting Index: 0x00000004
    Current DC Power Setting Index: 0x00000004



  • Edited by nhp_dfo Friday, February 08, 2013 8:11 PM
February 8th, 2013 7:28pm

Hello,

Any chance group policies are coming into play with this scenario? (on a domain)

Did you rename the power scheme, it's not at the default name. name is meteo_t which is not one of the defaults

Is this Windows 8, Windows 8 Pro or Windows 8 Enterprise?

Run powercfg /list to list all the power schemes.

Try running powercfg /setactive <scheme name from list above>

to change the scheme to see if that allows us to make changes

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February 8th, 2013 9:35pm

Thanks for getting back on this.

Group policy would be as how it came from Samsung, as I've done very little intentionally with it beyond linking occasionally with a wireless router to get Windows and Samsung updates and to uninstall the bloatware.  It's not on a domain, and is not intended to be a network machine.   I'm not particularly knowledgeable about group policies, but assumed they were put in place by IT people, not something that you found on something from a big box store.   But please update my thinking if I'm wrong.

It is Windows 8 on the tablet.

Yes, meteo_t is a new power scheme, based on the stock "Balanced" scheme, where I am trying to create a low power scheme.  So there are just the two schemes available at present.  

I'm  not sure what I am supposed to look for with the /setactive switch.   Do I setactive meteo_t, or  the Balanced, and how is this different from selecting the scheme in the Power Options window?   Once I've set a scheme active, should I be seeing changes that are permanent when I make them through powercfg?

I've set meteo_t set active for now using powercfg,  have changed the sleep setting using pwrcfg to  zero, which should make it "Never", if I understand correctly.  The "display off" was still set at 2 minutes.   Once again, the tablet's display went off at two minutes, and did not go to sleep, but once I rebooted the tablet, sleep occurred at 2 minutes when the display went off.   So the values that powercfg reads in response to the query do not seem to be the values that are being used to set up the power scheme on the tablet, when rebooted.  

Setting the "display off" time on this tablet continues to set the "sleep" time delay to the same value.   This happens whether I'm setting it with powercfg or with the Power Options window.

Once again, thanks for hanging in on this.



  • Edited by nhp_dfo Monday, February 11, 2013 7:21 PM
February 9th, 2013 12:56am

Wellll, maybe the "/setactive " switch did work after all.   Shortly before leaving work for the weekend, just for laughs, I rebooted one more time, set up the logging programs, and called it quits.   Monday morning, the display was still off, the power light was on, and, over two days of data had been recorded.   Another reboot after some notetaking, and it still works.  

So, this is  progress,  especially as having the display off does use less power than even the maximally dimmed display.  Thank you for this suggestion.   It's a solution of sorts, but it is concerning for two reasons:

---It took three reboots for this to "take"; I don't think I changed anything else between changing the "powercfg /setactive" and having it "take".   Is that normal for this way of changing parameters?

---The Power Options window in Control Panel still says "Sleep after" two minutes.   So I seem to effectively be controlling  parameters of Windows 8 through the command prompt rather than through the GUI, and the GUI is now disconnected from the results of using the command prompt.   I wonder how many other aspects of Windows 8 work this way, or is this just a newbie not knowing how things really work?   The apparent disconnect fits with the observation that  "powercfg /query ..." was reading results somewhat different from what the Power Options window said was the case, yet, at that time, the Power Options window's values were apparently controlling  the tablet's operation.  I presume using  the "/setactive" switch overwrote anything that was formerly provided from the values placed in  the Power Options window, and that the Power Options window provides values for the system if you update using it, but it does not tell you what values the system is actually using?   (and of course, why does the Power Options window provide this lock-step between "sleep" and "display off" in the first place?)

I would be happy to hear anyone's take on all this.   I need this system to be reliable, and I'd rather not hack it if I can avoid it.   But if using the command prompt is normal procedure to get what you want with Windows 8, I'll do what it takes to make my system work the way I need it to.


  • Edited by nhp_dfo Monday, February 11, 2013 9:52 PM
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February 11th, 2013 9:50pm

Hello,

The GUI should work the same as the commandline but I am not sure why it is not happening on your machine.  The commandline option for the changes is not a hack it is a supported tool for making power scheme changes

February 13th, 2013 9:29pm

Thanks for passing that on, and I apologize for the "hack" comment.   You are quite correct as to how it should work; I went off and changed  "monitor-timeout-ac" (turn off display after)  to 10 minutes, and could see  that change in the Power Options "Edit Plan" / Advanced Settings window, after I made the change with powercfg.   But, the same old problem:  Once I closed the  "Edit Plan" window in Power Options, then returned to that window, "Put the computer to sleep" had also changed from "Never"  to "10 minutes".

I immediately ran powercfg /query, and "(sleep after)" is STILL 0x00000000 (i.e. Never; "(turn off display after)" is still correct), but I have no idea what powercfg is reading, as, through observation, what appears in the "Edit Plan" window is what goes.

Until, apparently I run the /setactive switch in powercfg, maybe several times.   But that switch does not have a permanent effect.  At some point, I do something in Windows that will cause the system to read what came from the "Edit Plan" window, and it reverts to the settings found there.

The problem has been observed by others on this list and on other lists, but it doesn't seem universal.   Whether that means the problem is actually not universal or whether it is just not a concern to most users, I can't tell.  This particular tablet has a gratifyingly fast recovery from sleep mode; why would most users care what it was doing while they were away?   Because I don't have administrator access to any other W8 machines in my immediate vicinity, I can't tell whether this is a W8 problem, or a problem with W8 as it was installed by Samsung, who, of course, claim it is a Microsoft problem.

What you or someone else may be able to answer is how much control a manufacturer has over their installation of Windows 8?   If they are able to perform their own unique changes to the registry as part of the install, compared with other manufacturers, to determine for example, what parameters appear in the "Edit Plan" window, then what is to say they do not inexpertly and inadvertently perform other changes which result in what I or others have observed?

Maybe I can get an answer to that question while I track down other W8 machines.

-----a note a few hours later:   I'd originally posted a question about this in the  

Windows / Windows 8/ Performance and Maintenance portion of the Microsoft Community forum, to little avail, but this comment popped up today, so it's not just my tablet, and it's not just Samsung:

"I'm also seeing this on my Lenovo ThinkPad Tablet 2.  Whatever, I set the time turning off the display is what becomes the setting for it going to sleep.  I'm running a clean install of Windows 8 Enterprise with all drivers updated to the latest version.  This clearly looks like a Windows bug. "

If it is a W8 bug, then it would be nice to get a workaround, at least until it is corrected...surely not all computers are used for social media exclusively...

---yet a further thought:    Both the Tablet 2 and the Samsung XE500T1C use the Clovertrail processor.  I wonder if the problem has its origin there?   Maybe the Clovertrail itself limits the options available for power control?  Any thoughts?



  • Edited by nhp_dfo Friday, February 15, 2013 10:05 PM
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February 14th, 2013 7:42pm

I seem to be in an echo chamber here, replying to my own post, but I guess that's normal for a genuine problem.  (further sarcasm self-suppressed)    The Acer Iconia W510 (also Clovertrail) also suffers from this problem per Acer's support site.

 

Could this anomaly observed across Clovertrail tablets be due to a mode called  "connected standby"?   I quote from a MS document known as:  optimizing-windows-applications-for-connected-standby.pdf  (sorry I can't give a link, as this forum claims I haven't been verified, and beyond the verification that has already occurred at Microsoft Community, shows me no way to do it)

"When the display is turned off on connected standby capable systems, all running software (including applications and operating system software) become subject to a new set of activity restrictions. Windows Desktop Activity Moderator (DAM) suppresses legacy app execution in a manner similar to the Sleep state. It does this by suspending all applications in the user session and throttling all 3rd party services to create predictable power usage over the period of idle time. This enables systems that support connected standby to deliver minimized resource usage and long, consistent battery life while enabling Windows 8 Modern UI apps to deliver the connected experiences they promise. In addition, as hardware power states become more sensitive, software services must be well behaved at connected standby so they dont needlessly wake/throttle the system, which would limit battery life."

 

Yes, my system has "connected standby" enabled per queries using powercfg.exe -energy

 

I'll bet yours does too if you are observing that setting timeout for the "display off" puts the tablet / computer to "sleep" at the same time.  It's not quite the same as "sleep" as we've known it in the past, but unless your application complies with "connected standby", it may just as well be, because it seems that it will be suspended at the same time as the display switches off.  

 

I guess that the "Edit Plan" window was modified just enough to tie "sleep" and "display off" together without actually telling the user what is going on.

 

Now....can one disable "connected standby" for those who have their own ideas about power saving, and want to use an application that wasn't written very recently?

February 19th, 2013 8:43pm

"The GUI should work the same as the commandline"......I'm beginning to wonder about that, and I may need to revive the word "hack", that I used once before.  See the following.

The Desktop Activity Moderator driver seems to be the main culprit for this particular behavior on several brands of tablets that use Clovertrail processors. It is enabled as part of W8 boot up process when the processor lets Windows 8 know that it is capable of "connected standby".

 Stopping DAM.sys from being loaded on system boot has the desired effect, and that, as you probably know, can be done by opening an administrator command prompt and running the following command:

sc config dam start= disabled

and rebooting.  If the information concerning this command is accurate, dam.sys will not be loaded on this or any subsequent boot up.  So far, dam.sys  seems to be disabled when I query it, or check its settings in the registry.

Then, I repeated my setup of the "display off" and "sleep" parameters as before, using powercfg instructions at the command prompt:

powercfg /x monitor-timeout-ac 2

powercfg /x standby-timeout-ac 0

powercfg /setactive    <....>

(the <....> field contains the GUID value of the power scheme that is being modified) 

So now, the display switches off, and my old school desktop applications continue to work, because the tablet never goes to sleep, just like I asked it to, and the "Edit Plan" window won't let me do.   Battery life is still going to be very long (unless the final gotcha is that these settings won't work in "dc"),  because the Clovertrail processor sips power compared with the earlier Atoms, and having the display turned off while still "computing"  lowers power consumption considerably.

 It doesn't change the values that you find in the "Edit Plan" window of Power Options.  That's why I think it qualifies as a hack.  I don't dare enable those yet in case it shuts down the magic, though I guess I will mess with that, sooner or later, once I'm confident this  is repeatable.


  • Edited by nhp_dfo Friday, March 08, 2013 12:02 AM
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March 8th, 2013 12:01am

Thinkpad Tablet user here.

I also was struggling with the GUI lockdown on Display-off and Sleep values.

I want you to know that you have created one of the most well articulated threads that I have recently found. YOur command of the written word to describe the issue and attempts to solve it are impressive. For that, I thank you!

Having said that, I still don't mind you using the term "hack" to describe using the command line to "override" the GUI..........but I don't think of it as a hack. Instead, I just see it as you have found a "bug" and worked your way around it until some patch (if ever) comes along and corrects the oversight. (intended or not)

I simply wanted to be able to set my display to go off without having to log back in each time I re-engaged. (sleep mode requires a new authentication and I am OK with that. I just don't want sleep mode to be entered so quickly)

Again, thanks!

I'm very happy with the TPT. Even more so now.

March 21st, 2013 3:37pm

Hi nph_dfo,

I am ASUS Vivotab Smart ME400C user, also with Clovertrail processor

I have followed your instruction to disable DAM and use "powercfg" to change monitor-timeout-ac to 1min, while standby-timeout-ac (sleep) to 0 (never), i have turned on "uTorrent" and waited 1 minute to screen to turn off, then another 2 minutes to wake up the machine, I found out that the uTorrent download speed has dropped to 0kbps and starting to pick up the speed, it seems that the machine has gone to sleep.

Just wondering what Edition of Windows 8 installed in your samsung tablet?

When your "wake up" your machine from "screen off", do you have a windows 8 lockscreen that you need to swipe upward to go back to desktop? Mine does have that lock screen. I was thinking, if the machine didn't sleep, it should not have the swipe up lock screen in place after come back from "screen off".

I really want this to work, that's the main purpose I bought this Full Win8 Tablet, so I can have it as low power download machine and support remote connection when screen is off.

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May 23rd, 2013 12:25am

Hi,

I have HP ElitePad 900 Tablet and i have the same problems. I have followed the procedure:

sc config dam start= disabled

and rebooting. 

powercfg /x monitor-timeout-ac 2

powercfg /x standby-timeout-ac 0

powercfg /setactive    <....>

but when the display is turned off also the tablet going to sleep mode and all desktop application is stopped.

You have other solutions?

 

 

 


  • Edited by premiaware Friday, October 04, 2013 9:31 AM
October 4th, 2013 9:30am

I have tried many ways, including using nircmd, but this is the only way to turn off the monitor without putting the device to sleep:

Look for C:\Windows\System32\scrnsave.scr. Create a shortcut to this on the desktop. Whenever you need to turn off the monitor without putting the device to sleep, double tap on the shortcut. (Using a mouse will not do as the mouse movement will stop the screen saver immediately and turn the screen back on.

It works on my ASUS Vivotab Smart Tablet. 

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October 27th, 2013 1:09pm

Using the scrnsave.scr does not turn off the monitor, just displays black, not saving power, unless using an amoled display.

I got dell venue 8 pro with the same sleep/turn off display issue.

January 19th, 2014 6:31pm



By default, using the screensaver (scrnsave.scr) does not turn off the monitor. However, when I enter screensaver settings, then Settings, then Display Settings, I am able to select "Display nothing on this monitor". I do this for all my monitors, but strangely, only the main monitor actually follows the setting and turns off. All the other monitors just display black. For a single monitor system, this might be sufficient.

I also need to run this command:

CMD /C C:\Windows\System32\scrnsave.scr /s

Edit: Forget what I wrote above. I just read somewhere that some monitors turn off automatically when displaying black while others do not. Tested it, and actually, this is what is happening to my LG main monitor vs the other two Acer monitors.

So if you want to solve the problem a different way, there are some executables listed in this article: http://www.makeuseof.com/tag/3-quickest-ways-turn-computer-screen-windows/


  • Edited by twocs Tuesday, November 18, 2014 6:05 AM
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November 18th, 2014 5:52am

This not answer

I install win 10 and also have this problem , and also reported for insider

This is very important for tablets , and if this is windows bag , should correct that

normal windows tablet with Skype and viber , ... can very very good if off display is only off display

I can not get massage and calls from Skype , yahoo massager and viber  when display be off


December 10th, 2014 5:41pm

try this

 unlock the hidden display off timeout for the lock screen

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April 4th, 2015 12:31pm

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