Re: [arch-general] [signoff] kernel26 2.6.28.1-1

bardo wrote:

2009/1/19 David Rosenstrauch :

...

FYI - I'm seeing a problem with the 2.6.28-3 kernel. For some reason there's no sound coming out of either the speakers or the headphones on my laptop (Dell Precision M4400) after the upgrade.

Sound module is snd-hda-intel. I checked volume is up, mute is not on, yada yada, but no sound coming out. Problem goes away as soon as I downgrade the kernel.

Anyone else seeing this and/or have any idea what the problem might be?

Maybe there's a regression in your soundcard autodetection? Do you pass any "model=" parameter to snd-hda-intel in /etc/modprobe.conf? Anyway, there have been a couple of commits in that driver, if you want you can track them searching for "alsa: hda" in the changelog (http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.1).

Corrado

Thanks for the info. No, I don't pass any model parameter, partly because I didn't know about this parm until recently, and partly because I'm not sure what the correct value should be. ("head -n 1 /proc/asound/card0/codec#0" says "IDT 92HD71B7X", but I'm not sure where to go to look up the model number from that.) Will check the change log and see what's of relevance. Thanks, DR