1. have two monitors (not sure if necessary, also the two monitors i have have different resolutions)
2. suspend computer to ram
3. wake up computer
4. screen flickers
1. set pp_dpm_mclk immediately fix the problem
2. after step 1, set power_dpm_force_performance_level to "auto", then the problem reappears.
3. flicker doesn't occur on vconsole
This bug occurs on linux 5.3.0, xorg 1.20.5, mesa 19.3.0 40087ffc5b9
Please attach your xorg log (if using X) and your dmesg output.
Created attachment 145610 [details]
dmesg (from suspend entry to exit)
Created attachment 145611 [details]
Xorg.0.log (has a couple of suspension/hibernation)
Looks like this happens after a GPU reset as well.