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  1. #1
    Plutonium Lounger
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    Power Options (WinXP Pro SP-1)

    Some time ago, I reported this problem and am still wrestling with it. I have used the Power Options applet of Control Panel to turn off my monitor at a predetermined time, rather than using a screensaver. The problem is that the <img src=/w3timages/censored.gif alt=censored border=0> setting doesn't stick and without warning, the monitor power will not turn off. I have tried and tried to pinpoint an occasion that may be causing it and can't come to any conclusion.

    Does anyone know if the Control Panel applets can be run from the command prompt so I can "schedule" a re-setting of the timeout a few times per day? The power options applet is <big>powercfg.cpl</big> but I can't find anything about it in the Help file.

  2. #2
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    Re: Power Options (WinXP Pro SP-1)

    BigAl,
    As tedious as it may be, have you tried running anything like Sysinternals Regmon. There will be a tremendous amount of information. But if you can find the keys that get changed when you set the power controls you can filter the output and maybe catch what is changing them later. Just found this registry key name - HKEY_CURRENT_USERControl PanelPowerCfg. Maybe you can start off with a filter.

    Joe
    Joe

  3. #3
    Plutonium Lounger Leif's Avatar
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    Re: Power Options (WinXP Pro SP-1)

    A couple of things that come to mind:
    1] Is the monitor properly recognised? If it is not seen as a true 'energy compliant' model the setting may be ignored.
    2] I recently bought a new APC UPS which connects via USB. It took over my power options and whatever I try and do, after several hours non-use all open applications are closed and I am logged out. Unplug the USB and all goes back to normal <img src=/S/shrug.gif border=0 alt=shrug width=39 height=15>

  4. #4
    Plutonium Lounger
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    Re: Power Options (WinXP Pro SP-1)

    Joe: I've downloaded Regmon and will probably give it a short try, but it may be overkill for this problem. Not sure if the registry key you listed is the correct one, for it seems to be for the "power schemes" included in XP. The reason I think that is 'cause I don't see any key under it for the settings with power options.

    Leif: No APC in the system (yet) and yes, XP does know what kind of monitor is attached but the key thing is that the monitor DOES power off at the correct interval for quite some time after my morning re-boot. But sometime during the day or evening, it will "forget" and stop turning off the monitor. The weird thing is that all day long, I do the same things: I check Mailwasher to see what mail is waiting, open Mozilla mail and retrieve the ones I want, and use Mozilla browser. Last evening, (it had been powering off all day long) I was in The Lounge while my meal was cooking. Left the computer to eat and watch about an hour and a half of TV news. When I returned to the PC the monitor was still ON. I have a shortcut to Power Options, I've done this so much, reset the time and apply. It'll be OK until the next time...

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    Re: Power Options (WinXP Pro SP-1)

    BigAl,
    I think your settngs get saved in one of the entries under the 'Power Policies" sub-key. The 'Power Schemes' page is the one I get whether I access from Control Panel | Power Options or roght click Desktop then Properties | Screen Saver | Power. Are you seeing something different?

    Joe
    Joe

  6. #6
    Plutonium Lounger
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    Re: Power Options (WinXP Pro SP-1)

    Nope, that's the screen. In the registry, under PowerPolicies, the zero ( 0 ) subkey is for "Desktop" which is the window in the app where I'm setting the power timeout. However, whatever is in the registry key is buried in the binary value it contains. Just for grins, I've exported a file with PowerPolicies and its subkeys. Next time my monitor fails to power off, I'll run that REG file and see if it repairs things.

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