[mythtv-users] Trouble with HD Playback

[Billy Macdonald]

On 10/8/07, David Brieck Jr. <dbrieck at gmail.com> wrote:
> The problem I'm having is that the video playback seems to "freeze"
> every 5 seconds or so while the audio keeps going without a problem.
> It is only for what seems to be a millisecond or some very short
> amount of time.
>
> My HD capable frontend has only been running for a little over 1.5
> months and it at one point worked without a problem.
>
> It's a Core 2 Duo 2 Ghz, 1 GB RAM, Nvidia 6200TC 256MB. It's driving
> at 720p via a DVI to HDMI cable.  I do have 'Option "UseEvents"
> "True"' in my xorg.config. I have also turned on Sync to VBlank in
> addition to checking the option in the frontend for opengl Vsync.
>
> CPU usage is pretty low, as in under 30% on my frontend.
>
> There are no problems with SD content, only my HD. I'm not using XvMC
> as it seems not a processor limitation as it is something else. I'm
> using Ubuntu Feisty if that matters to anyone.
>
> Any ideas what I can do to fix this? It's really odd that it worked
> fine for awhile then stopped, most likely after a reboot or something,
> but I think I have all the preferred setting so I'm at a loss.
>
> Thanks,
>
> Dave

Network and DB are the two things I'd look into.  Look at the command
to check the mysql db in the howto.
http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.4

Make sure your NFS mount is using the proper parameters.
http://www.mythtv.org/docs/mythtv-HOWTO-23.html#ss23.10
(One time my NFS didn't export on the backend and playback didn't work
as well without it, so make sure it is actually mounted.)

Also, does this happen on all networks (1080i vs 720p) and with
different deinterlacer settings and such?

Billy