[mythtv-users] Video Stutter Problems
Thomas W. Shelton
twshelton at hrtoolbox.com
Wed Jan 18 17:06:19 UTC 2006
Yes DMA is enable ... I was getting writes of about 50m/sec when I
tested.
I'll disable OpenGL and recompile with some optimizations. I'm running
Kubuntu ... Any thoughts on where to find optimizations ?
Thanks for the help ...
Thomas
-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Jerry Rubinow
Sent: Wednesday, January 18, 2006 10:59 AM
To: Discussion about mythtv
Subject: Re: [mythtv-users] Video Stutter Problems
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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