You can google search for an app called NOSLEEP.EXE
It was written by a Symantec employee to keep your screen active regardless of pic settings.
Install and run it. That will verify the issue is with of or monitor
Software is free
Btw, I’m available to help over the phone in case u need at
https://www.6ya.com/expert/lisa_52daba487e5b4d53
×