XFree 4 & sound problems

Matt Haffner haffner at astro.wisc.edu
Wed Apr 5 15:53:44 EST 2000

I'm a little confused why there is a problem with XFree 4 and sound
since I wouldn't think XFree does anything with it, but I'm getting hard
freezes when playing MP3's in XMMS and mpg123 whenever I do significant
X actions (switching desktops, starting Netscape, mousing a menu, etc.).
If I just let things go and don't touch anything, it plays fine. The
freeze requires a reset button reboot--the machine is not reachable at
all (i.e. it's not just X).

I'm on a rev. 1 B&W with a 2K install and 2.2.15pre14. These are the
only kernel sound flags set in my build:



       (tried 'n' as well here since I thought dma took care of it all)

I suppose it could be a more subtle interaction with the new kernel as
well. I had pre3 originally but had to upgrade for XFree 4 USB. However,
I can play songs from a VT without running X with mpg123 without
trouble. Also, if I switch back to Xpmac.r128, everything works again
without crashing even under the new kernel.

Anyone else having this problem? I'm happy to muck around if you have an
idea where I can start looking for the problem. Is enabling any of the
kernel debugging options worthwhile in these hard freezes or is it too
quick to trigger any useful dumping?

Matt Haffner                      /|------|\    University of Wisconsin
Dept. of Astronomy               /|--------|\            Madison
haffner at astro.wisc.edu          /|----------|\
           WHAM project -- http://www.astro.wisc.edu/wham

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