Red Hat Bugzilla – Bug 72178
(SOUND NM256_AUDIO)Sound does not function with NeoMagic MagicMedia 256AV card
Last modified: 2008-08-01 12:22:52 EDT
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User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0; H010818)
Description of problem:
I have a Dell CPi366 laptop. When I install RedHat Beta (both Limbo and
(NULL)) the sound does not work. When I run the mixer it tells
me that I do not have permission to /dev/mixer. When I change the permissions
on the mixer, I still get the same error.
I also tried using 'aumix', but I get the same type of error (both as root and
as a normal user).
When I use the sound card configuration tool, I see the following:
Vendor: Neomagic Corporation
Model: [MagicMedia 256AV Audio]
I press the "Play test sound" button and hear nothing.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Try to play sound :-)
Actual Results: Nothing. That's the problem.
Expected Results: I expected sound. Or some error indicating why sound could
I have this same problem with my sony Vaio Z505RX with both null and psyche. I got sound again by using sndconfig as follows:
1) start sndconfig as root
2) went through automatic configuration (doesn't play test sound)
3) go through manual configuration (default values choose nm256_audio)
4) system plays test sound and sound consistently works until reboot
i should also note that i could barely here the sound at first because my bios had the volume set low on boot.
Also running redhat-config-soundcard from a console instead of the menu gave me error messages about sox and /dev/dsp, i'll post the exact
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases,
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/