Another MBP 5.2 owner here, using Debian unstable with legacy bios boot, amd64, alsa-driver 1.0.20 and patch posted above.
I did not get pulseaudio to work and I commented out the stuff in /etc/asound.conf again. My left+right HP speakers both work fine anyway. However, - I also have the noise reported by Chris Lasher above, even though mic/line are muted and gain is minimal. - The PCM and Master controls only work for speakers, not for HP. - With mpd, I have to reduce the gain of the HP to about 0% to be comfortable, and 20 is pretty loud already. Using alsamixer, all other settings muted or 0% - With mplayer, loudness-levels seem more normal. PCM mixer works. Both, mpd and mplayer are run with alsa. However, I can not unload snd_mixer_oss, that might be the culprit here.. Did you compare to PIN settings in windows? ** Attachment added: "proc/asound/card0/codec#0" http://launchpadlibrarian.net/29421090/alsa.mine -- Left speaker doesn't work, controls mixed up on Apple MacBook[Pro] (5,1) https://bugs.launchpad.net/bugs/337314 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs