Computer is turning off monitor after 20 minutes of inactivity, but sometimes I cant turn it back on. I move mouse, click, press every button on my keyboard, tried ctrl + alt + del, but there is no result. Then, I must restart pc.
After "googling" I found that this is "blackscreen syndrome", and problem is avast.
Any help? I think this is big problem.
Avast is up to date.
OS is Windows 8.1.