Driver_Power_State_Failure after waking from sleep

[Malevolence]

I don't know what this is but when I wake the PC from sleep it starts up, i.e. the fans start, the HDD chugs into life and the mouse & keyboard light up, but I get a "DVI No Signal" box on the monitor. If I switch the monitor off and then on again the light goes to blue (as it is when it's on) but then switches back to the yellow (as it is when it's powered down with the PC in sleep mode). Another funny thing is that if the PC is asleep for an hour so it doesn't happen. If it's for quite a few hours it does.

Normally it takes a hard reboot to sort it out, but today I got a Windows error screen saying "Driver_Power_State_Failure" and the PC will reboot.

It's weird because the rest of the time, everything works fine, it's just waking from sleep that is causing problems.

I'm running Windows 10 64-bit. Any ideas?

 

[Malevolence]

Everything is up to date and not overclocked.

That said, I've just done a third clean installation of the latest Nvidia drivers and it seems to have fixed it. *touch wood* At least I hope it's fixed it and it awakening without issue a couple of times is not just an errant occurrence.

 

[Malevolence]

Nope. I spoke too soon.

Just tried to wake it from sleep after six hours, the PC woke but the monitor stirred and then went back to sleep and I got thrown to the "Driver_Power_State_Failure. We are gathring information and your PC will restart in 10%....20%....30%.....40%...." screen.