HP Desk Top Model 500314- Windows 8.1 OS.
PC will go into sleep mode but after approx 15/20 minutes when I want to wake it up the PC wakes up but the moniter will not wake up(just a black screen).
I have reset the power settings numerious times with all variations! same results. It is strange that the sleep mode works fine for the first 15 to 20 minutes and then the problem appears?
All other aspects of the PC seem to be working alright. This is a new PC about 2 months old and the problem appeared from the first time it was turned on. All the latest Drivers and Windows updates are installed. HELP!
