With new kernel 3.18RC1 trying hardware acceleraton I discovered GPU hangs.
Running 'mpv -vo vdpau --hwdec vdpau filename' starts to play movie and all it
seems ok. But if we try to rewind forward/backward first it, playing, hangs.
Than all system hangs. Switching to another VT in dmesg appears:
[drm:r600_ib_test] *ERROR* radeon: fence wait failed (-35).
[drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX ring (-35).
Switching back to VT7 we can watch that image appears and disappears.
Restarting ligtdm service allowed me to log in to account. But anyway all
system switched to XRender and no OpenGL until I fully reboot.
mpv --version
mpv git-f5a19f6 (C) 2000-2014 mpv/MPlayer/mplayer2 projects
built on 2014-10-18T11:58:42
ffmpeg library versions:
libavutil 54.7.100
libavcodec 56.1.100
libavformat 56.4.101
libswscale 3.0.100
libavfilter 5.1.100
libavresample 2.1.0
vdpauinfo 0.1-1
mesa-vdpau-drivers 10.4~git1410211930.ef280c~gd~t
libgl1-mesa-glx 10.4~git1410211930.ef280c~gd~t
Kubuntu 14.04.1
Linux: 3.18RC1 x86_64
Graphics: Radeon HD2600 XT