Comment 42 for bug 108392

I have a Compaq Presario CS502us laptop running Gutsy Gibbon, and can confirm I have no sound. I had working sound in the live cd prior to an install. Sound worked for a while and now it seems that the only way to have working sound is to power up the lappy on battery power, not AC (plugged in). I had an issue with the headphone jack plugged in but still having sound playing out my speakers. I fixed this by adding "options snd-hda-intel model=laptop".

I'm using the snd-hda-intel alsa driver, but I believe it's a conexant chip since that's what Windows Vista was using.

00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)

snd_hda_intel 263712 4
snd_pcm_oss 44672 0
snd_mixer_oss 17664 1 snd_pcm_oss
snd_pcm 80388 3 snd_hda_intel,snd_pcm_oss
snd_seq_dummy 4740 0
snd_seq_oss 33152 0
snd_seq_midi 9600 0
snd_rawmidi 25728 1 snd_seq_midi
snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi
snd_seq 53232 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24324 3 snd_pcm,snd_seq
snd_seq_device 9228 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 54660 15 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8800 1 snd
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm