[mythtv-users] Video Stutter Problems

[Thomas W. Shelton]

> -----Original Message-----
> From: Jerry Rubinow [mailto:jerrymr at gmail.com] 
> Sent: Wednesday, January 18, 2006 12:54 PM
> To: Thomas W. Shelton
> 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
> 
> On 1/18/06, Thomas W. Shelton <twshelton at hrtoolbox.com> wrote:
> > 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 ...
> 
> Try adding --enable-proc-opt to ./configure.
> 


OK ... I did that orinally ... I'll keep at it and let you know if the
OpenGL removal helps.