No Sound on Fedora 11 2.6.30 kernel (2.6.29 works fine)

[tmclaugh-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org (Tom McLaughlin)]

Jerry Feldman wrote, On 10/11/2009 07:53 AM:
> Sound works fine on my system with the 2.6.29 (specifically
> 2.6.29.6-217.2.16.fc11.x86_64) kernel, but when they updated to 2.6.30
> the sound stopped working. If I reboot back to the 2.6.29 kernel things
> work fine. I've googled a number of different places (including Fedora
> Forum http://forums.fedoraforum.org/showthread.php?t=225660), but no
> luck. Looking at some of the issues it appears to be something between
> front and back speakers. My system only has 1 audio array . My sound
> card is nVidia Corporation MCP55 High Definition Audio (rev a2). I've
> looked through all the different settings and run various Pulse Audio as
> well as ALSA mixers. When I look at the Pulse Audio volume meter, in
> both 2.6.29 and 2.6.30 kernels, it does show the volume levels. So far,
> I don't see any clues at either boot time or in dmesg.
> 

Are you getting no sound at all or periodic sound and lots of pops?
With some update I went from sound perfectly fine to only periodic sound
and lots of popping noises.  This is what I ended up doing to fix things.

[tom at tomcat tom]$ cat /etc/modprobe.d/local.conf
options snd_hda_intel power_save_controller=0

Even if this isn't your problem I think this bit might help a few Fedora
users on the list. :)

tom

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