I've developed a patch against alsa-driver-1.0.22.1 which should fix the headphone jack sense and volume control issues (which I've attached to this bug), which you can test as follows:
First make sure you don't have any versions of linux-backports-modules- alsa installed: apt-cache --names-only search linux-backports-modules-alsa | cut -f 1 -d ' ' | xargs sudo apt-get remove --purge Now download alsa driver source and the patch, and compile and install a patched version of the driver: cd ~ wget ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.22.1.tar.bz2 wget http://dl.dropbox.com/u/174251/alsa-driver-1.0.22.1-mb5.patch tar xjf alsa-driver-1.0.22.1.tar.bz2 patch -p0 < alsa-driver-1.0.22.1-mb5.patch cd alsa-driver-1.0.22.1 ./configure make sudo make install Now you need to reboot your machine. If this works I'll push the patch upstream and hopefully we can get it applied to linux-backports-modules- alsa as well. ** Attachment added: "alsa-driver-1.0.22.1-mb5.patch" http://launchpadlibrarian.net/37864494/alsa-driver-1.0.22.1-mb5.patch -- 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 Mactel Support, which is the registrant for Mactel Support. Status in ALSA driver: Unknown Status in Mactel Support: Confirmed Status in “alsa-driver” package in Ubuntu: New Bug description: Reporting this bug for another user... In MacBook and MacBookPro 5,1 (aluminium, late 2008) the soundcard works out of the box only with headphones, and to turn speakers on it is necessary to manually set the 6 channels. In that case, sound is heard both on headphones and right and center speaker; the left speaker doesn't work yet. This bug is confirmed by several users, see the additional information attached. de...@raker:~$ lspci | grep -i audio 00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1) de...@raker:~$ grep Codec /proc/asound/card0/codec#* Codec: Realtek ALC889A _______________________________________________ Mailing list: https://launchpad.net/~mactel-support Post to : [email protected] Unsubscribe : https://launchpad.net/~mactel-support More help : https://help.launchpad.net/ListHelp

