[mythtv-users] Firewire on a combo backend/frontend

[Allan Wilson]

On 7/31/06, Allan Wilson <allanwilson at gmail.com> wrote:
>
> On 7/31/06, John P Poet <jppoet at gmail.com> wrote:
> >
> > On 7/31/06, John P Poet <jppoet at gmail.com> wrote:
> > <snip>
> > > Unfortunately, I now had an audio problem.  The sound would drop-out
> > > for a fraction of a second, every couple of seconds.  This only
> > > happened if I was recording via firewire at the same time.  I figured
> > > my firewire port and my sound card must be sharing an interrupt, but a
> > > quick look at the motherboard manual disproved that theory.  I then
> > > check the latencies of those two devices (lspci) and discovered that
> > > both were at 32.  After adjusting both up to 64 (setpci), my audio
> > > problem is also solved.
> >
> > Hmmm.  Unfortunately, adjusting the latency has not solved the problem
> > after all.  It has reduced it, but it is still there.
> >
> > I guess I will try a different PCI slot for the sound card next.
> >
> > John
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
>
> Attached is my sa3250ch.c file. You will probably have to update lines 32
> and 33 to match your box and this one has Steve's patch built in it. If it
> helps you out post back to the list and I will just post the code. Don't
> want to send an attachment to the whole list.
>
> Allan
>
>
I took a look at my look at my latency settings and my audio card was set to
0. I read on the wiki how to change that but I'm not having any luck. I
used:

sudo setpci -v -s 00:1f.5 latency_timer@

and lspci -v still showed me

0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801EB/ER
(ICH5/ICH5R) AC
'97 Audio Controller (rev 02)
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        Flags: bus master, medium devsel, latency 0, IRQ 17
        I/O ports at e800 [size%6]
        I/O ports at ee80 [sized]
        Memory at f7fff800 (32-bit, non-prefetchable) [sizeQ2]

Am I running the command wrong. I thought I would try this before the patch.
Thanks for the idea on this I had not run across it before and it explains
why my audio has been so bad when other things are going on.

Allan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mythtv.org/pipermail/mythtv-users/attachments/20060801/90d88144/attachment.htm