0
In Windows 10, System, Energy I have set the screen to be switched off after 5 minutes. (PC Standby after 2 hours). This happens: After 5 minutes the PC reboots. There appears to be a direct connection because the PC reboots after x minutes of inactivity where x is the number of minutes I set for the screen.
What could cause this behaviour? How could I fix it?
Almost the same happens when I send the PC to standby manually: It seems to shut down, screen goes black. When I then wake it via the power button it reboots.
This is on a newly built and installed machine, Windows 10, Gigagbyte H310M S2H with a Dell P2416D Screen.
I have no idea where to look next and I don't know if this matters: When powering up (cold start) the PC will not wake up the screen. I need to do a manual reset (button on PC) in order to get the screen display.