[mythtv-users] Video Stutter Problems
Jerry Rubinow
jerrymr at gmail.com
Wed Jan 18 15:58:46 UTC 2006
On 1/18/06, Thomas W. Shelton <twshelton at hrtoolbox.com> wrote:
>
> Hello,
>
> I have scoured the list and the Internet and discovered a lot of good
> information ... none of which has corrected my problem.
>
> I'm running on
>
> - Dell 2.4GHz/512M ram
> - pcHDTV 3000 Card
> - nVidia GeForce FX 5200
> - using NTSC with cable -- no cable box.
> - Have Video for Linux card specified -- not the pcHDTV(wanted to get the
> basics working first)
>
> using the latest stable branch from SVN compiled with --enable-Xvmc. I have
> "v4l" defined in my xorg.conf file. I also have Xvmc defined in the setup.
> I believe I have also turned off all commercial flagging. (specifics of
> which settings to check might help). The processor also spikes when I run
> glxgears ... not sure if that means anything.
>
> When I started the image quality was terrible. I have been able to
> significantly improve the quality but it still stutters. I ran "top" and
> both mythbackend and mythfrontend are consuming all available resources when
> watching TV.
>
> I feel like I'm making improvements but have run into a wall.
>
> Any thoughts?
For the backend, dumb question - is dma enabled on the disk(s)?
For the frontend, I had to recompile with processor specific
optimizations before I got reasonable CPU usage.
YMMV.
-Jerry
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