[mythtv-users] mythbuntu video stutter

[Christopher Kerr]

On Wed, Mar 24, 2010 at 11:36 AM, Ramasubramanian Ramesh <rramesh at ti.com> wrote:
> I have the latest mythbuntu istalled from about a month ago release. I have
> 9400 GT video card with VDPAU (level2 <= 720P and
> level1 > 720P) turned on for acceleration . My MB is a old AMD 939 board
> with Athlon signle core 2Ghz (2GB, DDR 400). I have periodic video stutter
> (about once in 10min) for about 15/30sec or so when I watch recorded shows
> (HD material). I usually either pause or rewind for a few second and stutter
> will go away.
>
> I have gone through mythtv VDPAU suggestions for turning off composite, cpu
> freq scaling.
> I also added triple buffer. I increased video buffer in backend_setup to
> large amount. Even with all this I still get the hiccups. Note that there is
> no problem in watching videos of from a DVD folder (obviously this is not
> HD) even from a remote machine through samba. I checked the machine load
> when the stutter happens and it does not show anything more than 20-30%
>
> Can any one suggest what other things I can do to solve this?
>
> Ramesh

Have you set your vdpaubuffersize=32 in the playback profile? From the
commit notes (well, a reply to the commit notes, I couldn't find the
original):
http://mythtv.org/pipermail/mythtv-dev/2009-September/066307.html

- Chris