No sound. possible broken intel8x0 driver ?

[jroed]

I am running a Debian system with the 2.6.17-2-k7 kernel. My sounds was working fine until recently, but just stopped working one day. I am not sure what happened. I have tried running alsaconf, and it seems to work properly, but then i still have no sound. I tried running alsamixer, and i can unmute the master channel, but i can't raise the volume level. Is something holding the master volume at 0 ? I was also thinking that maybe the driver (intel8x0 ) may have become broken. Has anyone had a problem like this ? Any suggestions would be appreciated. I have been working at this for days now with no success.



lspci | grep audio
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0)

uname -r
2.6.16-2-k7

lsmod
Module Size Used by
snd_intel8x0 29532 0
snd_ac97_codec 82848 1 snd_intel8x0
snd_ac97_bus 2112 1 snd_ac97_codec
snd_pcm_oss 44128 0
snd_mixer_oss 15744 1 snd_pcm_oss
snd_pcm 74504 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer 20420 1 snd_pcm
snd 46400 6 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_ oss,snd_pcm,snd_timer
soundcore 8736 1 snd
snd_page_alloc 9864 2 snd_intel8x0,snd_pcm

[engineuity]

dont know if it will help, but try restarting alsa:

as root:
/etc/init.d/alsa force-reload
Wait until the execution finishes before reloading the gnome panel option. I usually do a quick test with frozen-bubble afterwards

[spockette]

Try it with a live cd. You might have dead hardware.

[jroed]

I sorted out the problem. Although i still don't know why i can't change the volume on the master channel, i can manage to get my sound to work. It turns out that the "IEC958 capture monitor" control in alsamixer, when unmuted was interfering with the PCM control somehow. If i mute the IEC958 then the sound works just fine.