[Cialug] alsa snd-atiixp with bt878

[Nathan C. Smith]

I believe you have it narrowed down correctly.  If it is a VIA-based board I
would start with looking at the interrupts.

-Nate

-----Original Message-----
From: Tom Pohl [mailto:tom@tcpconsulting.com] 
Sent: Tuesday, November 02, 2004 2:14 PM
To: cialug@cialug.org
Subject: Re: [Cialug] alsa snd-atiixp with bt878



It's a 2.5ghz celeron.  It's plenty fast enough, it hardly breaks a 
sweat encoding.  When the playback window displays the video, it plays 
fine, but when it is full-screen it's a little pokey.  It's probably 
either an interrupt sharing problem or inefficient video driver 
problem.

The hdd timings even seem adequate:
  Timing buffer-cache reads:   1500 MB in  2.00 seconds = 750.00 MB/sec
  Timing buffered disk reads:  172 MB in  3.00 seconds =  57.33 MB/sec

-Tom

On Nov 2, 2004, at 2:02 PM, David Champion wrote:

> What speed is your CPU? With a bt878 card, my CPU - Celeron 800 oc'ed
> to 993mhz - was not fast enough to watch "real time" TV in MythTV. 
> That's why I bought the PVR-250 - because it has a built-in mpeg 
> encoder that takes that part off the CPU's load. In theory. If you can 
> get it working. :)
>
> -dc
>
> Tom Pohl wrote:
>
>> Indeed it is :)
>>  Once I get the audio worked out, I need to figure out why the video
>> seems to run just a tad slower than realtime.  It's probably the 
>> video card.  I think I read somewhere that there is an ATI driver 
>> that speeds up performance.
>> -Tom
>> On Nov 2, 2004, at 11:20 AM, Nathan C. Smith wrote:
>>> Did somebody say MythTV?  ;-)  Is that what you are working on Tom?
>>>
>>> -Nate
>>>
>>> -----Original Message-----
>>> From: David Champion [mailto:dave@visionary.com]
>>> Sent: Tuesday, November 02, 2004 11:13 AM
>>> To: cialug@cialug.org
>>> Subject: Re: [Cialug] alsa snd-atiixp with bt878
>>>
>>>
>>>
>>> Ah, yes. I was not using ALSA either. At that time, MythTV's 
>>> documentation was saying not to use ALSA because of problems like 
>>> this... I was using the OSS drivers.
>>>
>>> It seems like ALSA is getting better, but it's still a bit flakey,
>>> IMHO.
>>>
>>> -dc
>
>
> _______________________________________________
> Cialug mailing list
> Cialug@cialug.org
> http://cialug.org/mailman/listinfo/cialug
>

_______________________________________________
Cialug mailing list
Cialug@cialug.org
http://cialug.org/mailman/listinfo/cialug