[Bug 84688] New: System freezes - VA-API and libdrm 2.4.58

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84688

            Bug ID: 84688
           Summary: System freezes - VA-API and libdrm 2.4.58
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: xzyn9263z7y3l51o.bugzilla at nfnty.se
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

System freezes when using VA-API as hardware-accelerated decoder in VLC.
Sometimes only the pointer can be moved, although stuttering heavily.

Works great with mpv and XBMC with libdrm 2.4.58-1. No artifacts or stuttering.
Though system randomly froze once last night when trying to play a video in
XBMC with codec "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10" and codec id 28.

After downgrading to libdrm 2.4.56-1:
No more system freezes.
Video codec H264 - MPEG-4 AVC (part 10) (h264) displays fine.
Video codec H264 - MPEG-4 AVC (part 10) (avc1) has severe artifacts and after
terminating VLC 1 to 2 kernel threads called systemd-coredum each have 100%
load. These threads linger for several minutes.

Running on i3-2348M.

Arch Linux package versions:

linux 3.16.3-1
xf86-video-intel 2.99.916-3
libdrm 2.4.58-1
libva 1.4.0-1
libva-intel-driver 1.4.0-1

vlc 2.1.5-3
xbmc 13.2-4
mpv 0.6.0-1

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