https://bugs.freedesktop.org/show_bug.cgi?id=90360

--- Comment #1 from Mohammad AlSaleh CE.Mohammad.AlSaleh@gmail.com --- Hello.

Card:Mobility Radeon HD 4570

I set those at start-up: echo performance > /sys/class/drm/card0/device/power_dpm_state echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level

When trying to use VDPAU/UVD (e.g. with ffmpeg). The GPU soft-locks. X can be killed remotely. But the GPU is not reset properly. GL and VDPAU don't work after I start X again.

This bug was net present in 3.18.2.

dmesg output attached.