https://bugs.freedesktop.org/show_bug.cgi?id=88574
--- Comment #1 from user142@hotmail.com --- As of kernel 4.1 and mesa 10.6 the system does not crash/hang anymore but I get the following messages:
radeon: The kernel rejected CS, see dmesg for more information.
and dmesg gives me the following information:
[ 422.606081] [drm:radeon_cs_ioctl [radeon]] *ERROR* Invalid command stream ! [ 422.658136] [drm:radeon_uvd_cs_parse [radeon]] *ERROR* Invalid UVD handle 0x105c0003! [ 422.658167] [drm:radeon_cs_ioctl [radeon]] *ERROR* Invalid command stream ! [ 436.853008] [drm:radeon_uvd_cs_parse [radeon]] *ERROR* Failed mapping the UVD message (-22)!
This happens on both VLC with VDPAU and VA-API and also on MPV. The video sometimes plays and sometimes does not (just black).