[mythtv-users] Fast CPU, DMA enabled on HD, Xv enabled, still getting pauses in Live TV

[Reza Naima]

unrelated to mythtv, i _had_ the same motherboard, till it died on me.

http://pics.boom.net/cgi/index2?id=503

Turns out the capacitors were based on a stolen incomplete receipe for
electrolyte which causes them to die after 4000h of use.  google for
articles if interested.

-r


On Sat, Aug 16, 2003 at 11:37:16PM -0700, Joe V sent me this...
> This is completely strange, I don't understand it.
> 
> I upgraded to an AMD Athlon XP 2400+ (real speed,
> 2GHz), with an ECS KS57A Pro motherboard today.  The
> motherboard isn't the greatest, but for $89.99 for the
> combo, you can't really beat that.
> 
> Anyway, I have my profile for Live TV setup for
> 480x480, RTJPEG, MP3 Audio compression, level 4
> (middle of the pack or so).  When I run "top", I see
> that mythbackend ranges from 20-43% (CPU), and that
> mythfrontend ranges from 3-15%.  I have DMA enabled on
> my hard drive (hdparm shows this), XVideo is enabled
> on the second head of the Matrox G400 I'm using.  The
> card being used is a Leadtek Winfast TV XP 2000 Deluxe
> (bttv), and I'm using the 2.4.21 kernel, unpatched
> from kernel.org.
> 
> Despite this, I still get a stutter in the video/audio
> every now and then (if you average it out, probably
> once every ten minutes).  The output of "top" doesn't
> seem to spike any, so I don't think that it's the CPU
> not being powerful enough (it should be).
> 
> I've tried a bunch of things...  Swapping RAM
> (currently I'm using PC133, but I took the DDR400 from
> my desktop out and tried it), I've tried not enabling
> the second head on the Matrox (using a monitor), using
> ALSA and OSS, using KDE and Blackbox, heck, almost
> everything I could think of except changing the video
> card (maybe that's it?).  I've also turned off
> unnecessary services in Red Hat 9 (turned off
> sendmail, cups, etc.).
> 
> Does anybody have any further suggestions?  At this
> point, I'm almost suspecting a hardware problem of
> some sort.
> 
> -- Joe
> 
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