[mythtv-users] HD upgrade: new problems with playback

Willy Boyd willyboyd at gmail.com
Sun Feb 18 21:48:25 UTC 2007

On 2/18/07, Calvin Harrigan <charriglists at bellsouth.net> wrote:
> What distribution are you running?  I finally got my hardware which is
> identical to yours.
> m2npv-vm
> x2 3800
> 1 gig ram
> using the onboard video and audio.
> gentoo
> gentoo sources 2.6.18
> mythtv-0.20_p12172
> nvidia drivers-1.0.9746
> I can watch 1080i and 720p programming without any prebuffering pauses.
> One core peaks at about 55% with mythfrontend the other never gets above
> 10% running mainly X.
> This is with no XVMC, all sync options turned on (yeah I know, overkill,
> it was tearing) with bob deinterlacing.
> The video output is fixed at 720p which is the native resolution of the
> TV.  All material mpeg2.
> Calvin...

I'm running Fedora Core 6, with kernel 2.6.19-1.2911.fc6.  Currently
on SVN r12790.

Since you're running Gentoo, so necessarly compiling, are you able to
share your specific configure settings?  I'm currently using this:

./configure --prefix=/usr/local \
--with-bindings=perl    \
--enable-proc-opt       \
--enable-audio-alsa     \
--disable-audio-arts    \
--disable-audio-jack    \
--disable-directfb      \
--enable-lirc           \
--enable-v4l            \
--enable-ivtv           \
--enable-firewire       \
--enable-dvb            \

I still get "NVP: prebuffering pause"  with SD but mostly never notice
it outside of reading the logs.  LiveTV was on all day today and still
going.  Unfortunately I'm not recording HD yet but I did test a 1080i
mpeg2 playback and that worked fine (I forgot what the CPU usage was
for me but it's always been low).  I will be interested to see what
it's like with the HDHomeRun I plan to get, because I could just still
be fighting signal quality issues recording analog with the pvr250.

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