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

James P. Kinney III jkinney at localnetsolutions.com
Tue Nov 26 09:13:25 EST 2002


Power problem?? Copy a block off the DVD and play it from a file. If the
sound "wobbles" then, a) it's a crappy DVD, b) you have a crappy sound
card that needs too much CPU to run.

On Tue, 2002-11-26 at 01:53, 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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-- 
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
Local Net Solutions,LLC \           at a time.          /
770-493-8244             \.___________________________./

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) <jkinney at localnetsolutions.com>
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