[Cialug] alsa snd-atiixp with bt878

[Tom Pohl]

Using ATI's Proprietary Linux Driver, the video is perfect now!

BTW under slackware 10.0 (which uses X.org instead of XFree86) you 
*can* make the ATI driver work!  It was a little painful, but it only 
took about 3 tries before I got it working!

-Tom

On Nov 2, 2004, at 3:54 PM, Nathan C. Smith wrote:

> 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
>>
>>
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