[mythtv-users] VDPAU problem on HD-PVR content after update to b0.24-593-g40c1c32 master branch

Bob Sully rcs at malibyte.net
Thu Dec 23 02:49:01 UTC 2010

> From: John Nissley <jnissley at nissley.org>

>> >  I just updated to the latest version on mythtv via git and am seeing
>> some
>> >  issues with VDPAU playback with any of my HD-PVR content.  Things
>> worked
>> >  fine until the upgrade so I am hoping that someone can assist me with
>> >  finding the problem.  Any content recorded on my HD Homerun is
>> working fine.
>> >
>> >  Here is the output from the frontend log.
>> >  2010-12-18 21:04:34.015 OSD: Base theme size: 1280x720
>> >  2010-12-18 21:04:34.015 OSD: Scaling factors: 1.3125x1.45833
>> >  2010-12-18 21:04:34.017 Player(1): Video timing method: USleep with
>> busy
>> >  wait
>> >  2010-12-18 21:04:34.019 TV: Changing from None to WatchingPreRecorded
>> >  2010-12-18 21:04:34.101 ScreenSaverX11Private: DPMS Deactivated 1
>> >  2010-12-18 21:04:34.144 VDPAU: Added 2 output surfaces (total 4, max
>> 4)
>> >  2010-12-18 21:04:41.560 Marking recording as unwatched
>> >  2010-12-18 21:04:41.752 TV: Attempting to change from
>> WatchingPreRecorded to
>> >  None
>> >  2010-12-18 21:04:41.851 VDPAU Warning: Display pre-empted.
>> >  2010-12-18 21:04:41.851 VDPAU Error: Error at
>> mythrender_vdpau.cpp:873 (#2,
>> >  The display was pre-empted, or a fatal error occurred.)
>> >  2010-12-18 21:04:41.851 VDPAU: Attempting to re-create VDPAU
>> resources.
>> >  2010-12-18 21:04:41.893 VDPAU: Re-created output surfaces.
>> >  2010-12-18 21:04:41.904 VDPAU: Re-created decoders.
>> >  2010-12-18 21:04:41.904 VDPAU Error: Error at
>> mythrender_vdpau.cpp:873 (#3,
>> >  An invalid handle value was provided.)
> Re-install nvidia drivers maybe?
> if you're on 260, downgrade to 256..
> -------------------------------------------------------------
> Thank you for the response.  I have three front ends.  Two running fedora
> 12 which look like they are running 195 and then a fedora 14 front end
> that is running 260.  All three were working fine with VDPAU on all file
> types until the upgrade.  I currently get my nvidia rmps from rpmfusion so
> I will see if I can figure out how to downgrade the nvidia version but I
> do not think that will help since I did not change the nvidia drivers
> before or during the upgrade.  I am really wondering if this is something
> I did in the compile process since this if the first time I did a compile
> from the git repository. I was not able to find very much information on
> the differences but did notice that the myththemes directory was missing
> but I assumed that was because of the downloadable themes now.

> From: Jean-Yves Avenard <jyavenard at gmail.com>
> "The display was pre-empted, or a fatal error occurred."
> only occurs when the nvidia's vdpau crash (pre-empted as they call it)

I have been having the same problem - it's only happened recently (past
couple of updates to 0.24-fixes) - juddery video and audio, on HD-PVR
content in the Recordings directories ONLY.  Other HD content (HD-HR
recordings and all "former" recordings - those which I've processed via
ffmpeg and avidemux and now view via MythVideo - work fine).

I do *not* have any of those VDPAU pre-emption entries in my frontend log
after trying to play one of these files.

Anyone have a fix yet?

I don't THINK it's the video drivers, but I *have* had major problems with
the last two updates of the 256 drivers - running them through dkms as
part of the upgrade process makes the machine unbootable (full-on kernel
panic, two different kernels) - VERY odd - I've had to manually restore
the "older" 256 drivers and initrd files from my backup, whereupon I can
again run normally - but still have the above problem with the HD-PVR

"Curiouser and curiouser".  I know this install (combined BE/FE, Ubuntu
10.04, JYA's Myth repos) is getting stale, so am working on setting up a
fresh install soon (when I have time).  In the meantime, it'd be nice to
fix this HD-PVR issue.


Bob Sully - Simi Valley, California, USA

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