Comment # 134
on bug 91880
from Jan Ziak
(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
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