I can confirm that this is broken ( ie. plugging headphones mutes speakers, but has no headphone out ) for my system too ( Macbook Pro 3,1 / Santa Rosa ). I checked all of the ALSA mixer controls, and wasn't able to get the headphones working by toggling any of the settings and/or raising any of the levels.
I'm currently running the latest & greatest Karmic bits.
kernel is: 2.6.31-4
Please see attached alsa-info.txt
Note, I tried adding "model=mbp3" to the alsa options in /etc/modprobe.d/alsa-base.conf, but it made no difference.
I can confirm that this is broken ( ie. plugging headphones mutes speakers, but has no headphone out ) for my system too ( Macbook Pro 3,1 / Santa Rosa ). I checked all of the ALSA mixer controls, and wasn't able to get the headphones working by toggling any of the settings and/or raising any of the levels.
I'm currently running the latest & greatest Karmic bits.
kernel is: 2.6.31-4
Please see attached alsa-info.txt
Note, I tried adding "model=mbp3" to the alsa options in /etc/modprobe. d/alsa- base.conf, but it made no difference.