FS#42221 - [libdrm] System freezes - VA API in VLC

Attached to Project: Arch Linux
Opened by nfnty (nfnty) - Thursday, 02 October 2014, 20:51 GMT
Last edited by Jan de Groot (JGC) - Wednesday, 08 October 2014, 12:44 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Jan de Groot (JGC)
Andreas Radke (AndyRTR)
Laurent Carlier (lordheavy)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

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

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.

Package versions:
linux 3.16.3-1
vlc 2.1.5-3
libva 1.4.0-1
libva-intel-driver 1.4.0-1
libdrm 2.4.58-1
xf86-video-intel 2.99.916-3

Running on i3-2348M.
This task depends upon

Closed by  Jan de Groot (JGC)
Wednesday, 08 October 2014, 12:44 GMT
Reason for closing:  Fixed
Additional comments about closing:  kernel 3.17
Comment by Andreas Radke (AndyRTR) - Friday, 03 October 2014, 06:52 GMT
Report this upstream!
Comment by nfnty (nfnty) - Saturday, 04 October 2014, 21:28 GMT
VA-API works great with mpv and XBMC with libdrm 2.4.58-1. No freezes, artifacts or stuttering. Maybe this problem is specific to VLC?
Comment by nfnty (nfnty) - Sunday, 05 October 2014, 14:31 GMT
Might not be specific to VLC. XBMC randomly froze once last night when trying to play a video with codec "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10" and codec id 28 using VA-API.
Comment by nfnty (nfnty) - Sunday, 05 October 2014, 15:27 GMT
Reported upstream: https://bugs.freedesktop.org/show_bug.cgi?id=84688
Comment by nfnty (nfnty) - Tuesday, 07 October 2014, 16:40 GMT
This bug should be fixed with kernel 3.17.
Comment by nfnty (nfnty) - Tuesday, 07 October 2014, 16:54 GMT
Can confirm; Kernel 3.17 solves the problem.

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