Comment # 41
on bug 102646
from afm
RX 570 1002:67df [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev ef) Kernel: 4.19.2-300.fc29.x86_64 1920x1080 59.93*+ Lots of strange flickering and black lines with dc=1. Strange ghosting and screen corruption with dc=0 echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level echo "0" > /sys/class/drm/card0/device/pp_dpm_mclk Fixes the issue. echo "2" > /sys/class/drm/card0/device/pp_dpm_mclk echo "0" > /sys/class/drm/card0/device/pp_dpm_mclk echo "2" > /sys/class/drm/card0/device/pp_dpm_mclk Produces screen corruption for half a second on each change. Across all 3 monitors.
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