[ale] Bizarre sound problem... anyone know?

[Dow Hurst]

I believe the newer kernels may have some kernel parameters that would 
allow you to assign so much realtime CPU cycles to a process.  That is a 
complex change to implement without a lot of reading, but that is the 
type of problem the code is designed for.  The DVD is fine, your DMA has 
been checked since you say you've got it enabled and it reads fine under 
the older boot drive.  You could switch to a different DMA mode for the 
DVD.  I had to do that under SuSE 8.0 when using Xine to play a movie. 
 That was for improving the video, not the sound.  You might check to 
see what module parameters are configuring your Shark card compared to 
the old boot drive.
Dow


Ken Arromdee wrote:

>I just got a new hard drive and Mandrake 9.0.
>
>The problem is: When I play a DVD with Xine (and Alsa 0.9), I get wobbly
>sound.  The sound card is a Shark Predator ISA.  Kernel is 2.4.19-16mdk.
>
>Some details:
>-- The problem happens only when sound plays while the DVD drive's light is
>on.  If I replay a section of a DVD that was just played, there is no sound
>problem because the data is cached and not being read from the drive.
>-- In fact, I can play a DVD silently and run a separate program that makes
>sound, like an MP3 player.  The sound still has problems whenever the DVD
>drive's light is on.
>-- The problem doesn't happen on Mandrake 8.0, which is what I had on my old
>drive, even using the exact same versions of Xine and Alsa (and compiling an
>old Alsa on Mandrake 9 is an adventure by itself).  If I swap in my old drive
>and boot off of it, sound is fine.
>-- Yes, I have DMA enabled for the drive.
>
>I'm completely at a loss here--all I can think of that could cause this is
>kernel bugs.  (And there's no way I could find those.)
>_______________________________________________
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>Ale at ale.org
>http://www.ale.org/mailman/listinfo/ale
>
>  
>

-- 
__________________________________________________________
Dow Hurst                  Office: 770-499-3428
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Kennesaw State University         Dow.Hurst at mindspring.com
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