Comment # 135
on bug 91880
from Jan Ziak
(In reply to Jan Ziak from comment #134) > (In reply to Chris Waters from comment #133) > > I decided to record how my system behaves when using Linux and my 390 > > together. > > > > This is what I see https://www.youtube.com/watch?v=9uVIzHFlTZk > > > > This is Ubuntu MATE 16.10 with Firefox open¹, something that is not at all > > graphically intensive. On KDE Plasma 5 it's even worse, my entire system > > will sometimes crash. It's completely unusable and I'm stuck on Windows > > because of this. > > > > ¹ I know there is a tab that says "Chrome Experiments", but it's unloaded. I > > tried loading one to see what would happen if I tried something a bit > > intensive, but my entire system crashed. Ended up having to restart > > recovered my session in Firefox. > > > > This look the same for other 390 users? > > The video is similar to what I am seeing, in the video it is more severe. > > ---- > > If the following commands are executable on your machine: > > $ ls -d /sys/class/drm/card? > /sys/class/drm/card0 /sys/class/drm/card1 > > $ cat /sys/class/drm/card1/device/pp_dpm_sclk > 0: 300Mhz * > 1: 500Mhz > 2: 698Mhz > 3: 858Mhz > 4: 899Mhz > 5: 935Mhz > 6: 969Mhz > 7: 1000Mhz > > then (question) does the flickering go away if you run: > > $ echo 1234567 > /sys/class/drm/card1/device/pp_dpm_sclk Correction: $ echo manual > sys/class/drm/card1/device/power_dpm_force_performance_level $ echo 1234567 > /sys/class/drm/card1/device/pp_dpm_sclk
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