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Old 05-23-09, 08:38 AM   #1
davelaser
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Default Bug report for 185.18.10: xvideo stuttering

Even on single monitor single screen X with composite disabled, xvideo gets "stuck" and stutters every few seconds or so. Using gl to display video is ok but still gets stuck sometimes. The problem only gets worse when compiz is enabled.

This is a regression from 180.60 which works perfectly. I can run tests/post debug output/whatever to help solve the problem if you like.
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File Type: gz nvidia-bug-report.log.gz (36.5 KB, 70 views)
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Old 05-23-09, 11:12 AM   #2
davelaser
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Default Re: Bug report for 185.18.10: xvideo stuttering

On further testing, it appears this issue doesn't just affect xv, it affects every single gui application.

Flash, scrolling, even normal typing has momentary pauses in it accompanied by a large cpu spike every few seconds or so. Again, this appears to be worse with compiz enabled but happens even using metacity.

Sam
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Old 05-23-09, 11:14 AM   #3
davelaser
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Default Re: Bug report for 185.18.10: xvideo stuttering

I should mention I am using a nvidia 7400 on Ubuntu 9.04 32bit.
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Old 05-23-09, 08:49 PM   #4
Tronic
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Default Re: Bug report for 185.18.10: xvideo stuttering

I am seeing this xv video stuttering with 180.44 drivers. It is particularly well visible with mplayer -nosound -benchmark -vo xv. Using -vo x11 or -vo gl avoids the stuttering.

The stuttering itself displays as two consecutive frames alternating for a fraction of a second or more before the playback continues. In MPlayer benchmark this also shows up as low performance (compared to x11 and gl outputs) because it spends half the time stuttering.

http://zi.fi/debug/nvidia-bug-report.log
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Old 05-24-09, 04:29 PM   #5
sgriffin
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Default Re: Bug report for 185.18.10: xvideo stuttering

I am having a similar problem with 185.18.10...

My system:

Zotac Ion 230
Ubuntu 9.04

I upgraded to the beta because of the sync to refresh was broken in 180.60. The sync to refresh is fixed in 185.18.10, but it will sometimes stutter, and sometimes be fine. Once it starts to stutter, it seems to stutter until I reboot.
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Old 05-25-09, 04:03 PM   #6
sgriffin
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Default Re: Bug report for 185.18.10: xvideo stuttering

Quote:
Originally Posted by sgriffin View Post
I am having a similar problem with 185.18.10...

My system:

Zotac Ion 230
Ubuntu 9.04

I upgraded to the beta because of the sync to refresh was broken in 180.60. The sync to refresh is fixed in 185.18.10, but it will sometimes stutter, and sometimes be fine. Once it starts to stutter, it seems to stutter until I reboot.
More information: It's definitely the PowerMizer support. Sometimes it gets stuck at 0 when it should be on 3.

Does anyone know how to disable it and just run at full speed?
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Old 05-30-09, 08:05 AM   #7
Tronic
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Default Re: Bug report for 185.18.10: xvideo stuttering

The problem I'm having apparently has nothing to do with PowerMizer (on my card there is only one performance level). However, I have just upgraded to 185.18.14 drivers and the problem didn't go away. The problem also appeared quite recently, but I cannot identify when exactly.

New log: http://zi.fi/debug/nvidia-bug-report.log.gz

Anyone from Nvidia care to comment?
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Old 06-01-09, 10:27 PM   #8
Tronic
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Default Re: Bug report for 185.18.10: xvideo stuttering

Tried two years older version of MPlayer, made no difference. This issue is getting rather annoying as it largely prevents me from watching movies :/
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Old 06-05-09, 06:48 PM   #9
Nico.Laus
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Default Re: Bug report for 185.18.10: xvideo stuttering

got the same problem, too, which is quite annoying!
using GeForce 8800GT

Strange thing is that with the same configuration those stutters don't occur in some X-sessions...
this happened to me while writing this report: video playback stuttered heavily at first, then I did an "init 3" to I try to start Xorg with "--logverbose 6" to generate the bug report (which failed), so I changed to "init 5" again and now no stuttering occured
-> see the two attached log files I generated
Attached Files
File Type: gz nvidia-bug-report.log.stutter.gz (33.1 KB, 47 views)
File Type: gz nvidia-bug-report.log.nostutter.gz (33.1 KB, 53 views)
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Old 06-05-09, 06:54 PM   #10
Nico.Laus
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Default Re: Bug report for 185.18.10: xvideo stuttering

well, now stuttering occured in that session as well
(although it was working correctly for about 20 minutes or so)
it happens less frequently though as far as I can see
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