[mythtv-commits] Ticket #7493: VDPAU playback fails 30% of time

[MythTV]

#7493: VDPAU playback fails 30% of time
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 Reporter:  superm1@…                |       Owner:  markk   
     Type:  defect                   |      Status:  assigned
 Priority:  minor                    |   Milestone:  unknown 
Component:  MythTV - Video Playback  |     Version:  0.22rc1 
 Severity:  medium                   |     Mlocked:  0       
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Changes (by markk):

  * owner:  janne => markk
  * status:  new => assigned


Comment:

 The logs show quite clearly that the driver believes it has insufficient
 video memory for all of the video buffers. I'm surprised, however, given
 these are 512Mb cards.

 So:-

 - please try with the latest stable driver (190.42). There have been
 improvements in memory management, though I don't think they will help
 here.

 - can you confirm that this is still happening with 0.22/0.22-fixes. There
 was a fix for a sizeable video memory leak in the OpenGL painter but I
 can't honestly remember whether that went into the RC1.

 - check there are no other programs running that might be using video
 memory and hence competing with MythTV for those resources.

 - confirm which theme and UI painter you are using.

 - confirm whether the composite extension is enabled and in use (i.e.
 compiz etc)

 To help alleviate the problem, try:-

 - reducing the video buffer size in the playback profile by adding
 vdpaubuffersize=XX to the filters entry. I don't expect this to help much
 however, given how early the failure is happening. Likewise ensure you
 disable all other vdpau options (deinterlacing, noise reduction etc) - for
 testing purposes at least.

 - change to a lightweight theme and use the qt painter (and disable
 composite if it is enabled).

 - close any/all other programs that may be using large amounts of video
 memory.

 - disable OpenGL vsync if you are using it.

 thanks

 Mark

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Ticket URL: <http://svn.mythtv.org/trac/ticket/7493#comment:4>
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