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Windows 7: Computer refuses to enter sleep mode

20 Dec 2015   #1
KGS

Windows 7 Ultimate x64
 
 
Computer refuses to enter sleep mode

Having some problems with bluescreen of death I make a thread here in the bsod forum and I'm adviced to reinstall gfx card drivers. I do. And it seems to fix the BSOD.

After that, things went a bit weird. I'm not 100% sure if the problem is caused by the driver reinstallation, but now sleep mode no longer works.

Previously the computer would enter sleep mode after 30 minutes of no activity. Now it no longer does.

After a fair amount of googling I found instructions on how to run "powercfg /requests". It should apparently tell me what is keeping windows awake, but the only thing it tells me is that a "Legacy Kernel Caller" is blocking sleep mode.

That tells me absolutely nothing. Googling it yields no information either. What IS a legacy kernel caller anyway?

I am hesitant to do any kind of roll back with system restore because of the fact that the driver reinstallation was specifically done to avoid bsods. I don't want to go back to an unstable state.


My System SpecsSystem Spec
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20 Dec 2015   #2
maxseven

Windows 7 Home Premium 64bit 6.1 Build 7601 (SP1)
 
 

Well, maybe you should start then with double/triple-checking that your gfx card driver reinstall was done correctly, i.e. with the right driver for your machine.

BSODs normally signify a hardware, or a DRIVER problem; maybe you need a different/better driver. I would do a System Restore and then try again with the gfx.
My System SpecsSystem Spec
20 Dec 2015   #3
torchwood

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
 
 

Changing sleep options
Go to Power options amend to what ever you want.

Re Kernal error what non standard MS progs are you using.

If you have a usb stick copy the drivers to that before you roll back.

Roy
My System SpecsSystem Spec
.

20 Dec 2015   #4
KGS

Windows 7 Ultimate x64
 
 

The BSOD thing is not an issue in this thread. That was solved in the other thread.

I noticed just now that I can get rid of the problem temporarily by restarting chrome. For some reason chrome keeps using some driver even when not necessary, which prevents sleep mode.

Quote   Quote: Originally Posted by maxseven View Post
Well, maybe you should start then with double/triple-checking that your gfx card driver reinstall was done correctly, i.e. with the right driver for your machine.

BSODs normally signify a hardware, or a DRIVER problem; maybe you need a different/better driver. I would do a System Restore and then try again with the gfx.
The automatic installer finds the appropriate drivers automatically. There's no way to reinstall them from windows because windows driver update claims the drivers are up to date.

The drivers are with 100% certainty correct for the hardware, unless the installer detects the wrong gfx card for some reason.
My System SpecsSystem Spec
21 Dec 2015   #5
maxseven

Windows 7 Home Premium 64bit 6.1 Build 7601 (SP1)
 
 

Quote   Quote: Originally Posted by KGS View Post
I noticed just now that I can get rid of the problem temporarily by restarting chrome. For some reason chrome keeps using some driver even when not necessary, which prevents sleep mode.
Dunno Chrome, but look for a "use Hardware Acceleration" setting and try changing that.
My System SpecsSystem Spec
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 Computer refuses to enter sleep mode




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