Hello

I have relatively new Samsung Q80T 4K TV. I noticed that screen turns black like it goes to a sleep mode. Most of the time if I do not touch keyboard or PC mouse for 5-10 minutes. When I click on keyboard buttons or a mouse the screen turns back on but sound stop working in MS2020. TV sound is fine, GUI in the game like FSFO, RAAS, FSRealistic work. I just do not hear any sound in the cockpit. It happens in PMDG 737 but I am not sure if this is aircraft related. I rarely fly other aircraft. 
All TV settings are fine, no sleep mode, no power saving modes etc. I googled for troubleshooting options but nothing helps. Screen turns black time after time. The big issue is that I lose in game sound. No sound in external views either. If I restart Ms2020 the sounds returns. TV self diagnostic did not identify any issues. 
Any suggestions is appreciated. 
Thanks. 

Edited October 19, 20223 yr by skysurfer

Check your windows settings system/ power & sleep windows update thinks we all use batteries and will often re-set your settings, change this to never in both boxs. 

Good point. It was set for 5 minutes. Looks like update reverted it back from my settings. I am testing it now.