Computer refuses to enter sleep mode

KGS · 20 Dec 2015

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.

maxseven · 20 Dec 2015

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.

torchwood · 20 Dec 2015

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

KGS · 20 Dec 2015

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.

maxseven said:

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.

maxseven · 21 Dec 2015

KGS said:

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.