[mythtv-users] Re: Re: Prebuffering pause

[Steven]

Bodo Bauer wrote:
> On Fri, 2005-01-07 at 08:43, Joaquín Lago Pérez wrote:
> 
>>Hi Bodo, I have same problem, and was also thinking on attaching a usb 
>>audio adapter to the box. However, I have some doubts about which one 
>>would work ok in linux. Could you please tell me which usb adapter are 
>>you using and under which linux distribution? Now I have fc2 Thank your 
>>in advance, Joaquín.
> 
> 
> I got an USB Sound Blaster Live! 24-bit External adapter. It works very
> well for Line out. I use the SPDIF out an get excellent quality sound. 
> 
> Not sure about the support of the capture devices though. I still ise
> the ATI IXP for capturing.
> 
> A note on this. I talked to Takashi, the author of the IXP driver. He is
> aware of the problem and is trying to address it. He isn't sure however
> if the issue can really be resolved. There seem to be boards where it
> works, so it's not entirely the drivers fault. Buggy BIOS or ACPI tables
> are more likely the cause of the problem.  
> 
> BB
> 
Some input for your alsa-driver friend :

The problems with the atiixp driver on the pundit-r are somehow related 
to the latency settings of the videocard. Changing that settings has an 
effect on the sound card stability. You can change those settings in the 
pundits bios but they get ignored (you can check with lspci -v). So it 
might all be faulty bios. I've also seen reports on playback stutter 
problems on windows xp with the pundit-r.

The prebuffer messages in myth are, as far as I was able to test, 
related to buffers/troughput on the soundcard.
In mythtv you hardly notice problem if you use alsa output so the 
problem is exporsed more when you use the alsa oss compatibility layer.

If Takashi has some debugging tips on this I'm more than willing to try 
them out.

Steven