There are already a couple of Threads but amdmatt asked me to open a new discussion (see VEGA 64 + XG 2730 + Freesync = Random Black Screens ) Re: CF791 Freesync black screen via DP
I am experiencing random black screens when playing games. Those black screens seem to be random and sometimes happen numerous times within one hour and sometimes I can play for 3 hours straight without one black screen. The black screens look like a short signal loss. The monitor goes black , then the backlight goes on (without picture), then off again and then the picture is back.
Games where it happens:
World of Warcraft
Games where it not happens:
Vega 64 Liquid Cooled
Samsung 34CF791 connected via HDMI 2.0. (I tried different cables)
currently using Adrenalin 18.11.1, the issue happened with all 18.x drivers though.
However - those black screens are annoying as hell, especially when playing a fast shooter like Overwatch or Battlefield 5.
If you enable CSM, disable it.
It can be set with BIOS (UEFI).
I was bothered by similar problems with the RX 570, but it solved it.
Sorry for google translation
For me this was solved by setting gpu state 1 to min freq, mem state 3 to min freq, and disabling fan zero rpm in wattman. Basically forcing the card to never idle. Still only consumes 30w when not under load so not a huge power drain.