My Windows 7 RC screensaver and DPMI power off functions have ceased to work. How can I fix them?

My screensaver in my Windows 7 RC just doesn't get activated, no matter what timeout I put. Even the power saving feature does't put the monitor to sleep.

This only happens in Windows. If I reboot into Mac OS X (I'm using an iMac), the screensaver there works just fine and so does the sleep mode. It's just Windows 7 RC.

I've never had this kind of a problem with any OS before. I have been unable to find any info by just Googling. The simplest solution is to simply reinstall the RC, but I've got a bunch of things set up in a particularly and I don't want to go through all that again.

Does anyone know of any config entries that may have "hard disabled" the screensaver/sleep timeout? Any files that I can try replacing?

Another thing. Since this is an iMac, there's no way to turn the LCD off other than the sleep mode. So every night, I need to put a big piece of cloth on the LCD before I go to bed! LOL

aalaap

Posted 2009-08-23T03:34:11.413

Reputation: 592

Answers

Try typing powercfg -requests into a command prompt to see whether any of your applications have requested the display to be active.

Hirvox

Posted 2009-08-23T03:34:11.413

Reputation: 461

Perhaps you should try running Boot Camp again or a newer version, since I suspect you lack the drivers to run the advanced power settings/screen saver. Perhaps best to try the latest video card drivers as well.

Edit: after some searching I think you'll have to wait till the next version of Boot Camp

Ivo Flipse

Posted 2009-08-23T03:34:11.413

Reputation: 24 054

It was working fine for a long time. This just started happening recently. I haven't updated the Mac firmware or anything, so it's unlikely that anything like that could have broken Windows... – aalaap – 2009-09-02T11:56:01.443

I just upgraded to Snow Leopard and installed Boot Camp 3.0 in my Windows 7, but the problem persists. I think I'll just have to reinstall the damn thing. – aalaap – 2009-09-06T05:01:56.023

I've found peculiar behaviour on Windows 7 RC1 on a 24" iMac, with the screen saver not working sometimes.

Things to look at:

Check that something like iTunes, Media Player or VLC hasn't been running. They have a setting to disable your screensaver.
Test whether the screen saver can be activated when you first turn on.
Check your advanced power settings as well for your power plan.

user3463

Posted 2009-08-23T03:34:11.413

Reputation: