Some users reported that the monitor or screen fell asleep or turned off by itself while watching a movie, they played video games or did nothing. This usually happens after a couple of minutes. Most of today's computer screens can save power by dimming the screen backlight to a lower percentage., or just turning off the screen completely. Although this can save energy, can be annoying while watching a movie. Due to different situations, Windows implemented functions to control internal energy savings, to allow you to configure, disable or modify this behavior. Unfortunately, some users still cannot modify their system, in regards to saving power or turning off the computer screen. Despite setting Windows to never turn off the computer screen or only dim it after an hour or more, users still experience a black screen after the first few 10 minutes or so.
In this guide I will tell you what the cause may be and how to solve this problem.
Solution 1: change power settings
Windows 10 newly installed will automatically turn off your computer screens after 10 minutes. To deactivate it, click the Windows icon in the lower left corner of the taskbar and click Power Options. Now click on Change plan settings for the selected plan.
In the window that opens now, you can change the settings for Turn off the screen :. Change it to Never or set a time. Test to see if this solves the problem, but, go to Solution 2.
Solution 2: malware scan
Certain boot malware can also trigger this behavior. Users reported that after scanning their systems with Malwarebytes, they were able to solve this problem. See more steps here
Solution 3: repair system files
If the system files are corrupted, can make Windows “skip” the settings that the user has specified. Windows has a built-in utility called SFC Scan to repair system files. See the steps here
