Thanks, David. linux-backports-modules-alsa-karmic does indeed fix the issue on my Macbook 3,1 running karmic. The backport also fixes headphone detection trouble, e.g. speakers are now reliably muted when something is plugged into the headphone jack.
This can probably be closed as fix committed though ALSA still tracks the issue as "new", presumably due to a lack of positive test reports. -- Subwoofer not working in Intel Macbooks https://bugs.launchpad.net/bugs/305750 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: Upon installation of Ubuntu 8.10, sound can be enabled by adding "options snd_hda_intel model=mbp3" to /etc/modprobe.d/options (This is needed due to a detection issue, but that is another bug) After rebooting, the sound does work, but there is no sound from the Macbook's built-in subwoofer which makes the sound very poor sounding in comparison to how it sounds in OSX. This difference puts Ubuntu in a bad light. Users often complain about "tinny" or "poor quality" sound. This is specifically occurring on Macbook4,1 models (and likely Macbook3,1 as well) Reference: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4086 http://sourceforge.net/mailarchive/message.php?msg_name=4935B32D.3060501%40forestfactory.de _______________________________________________ Mailing list: https://launchpad.net/~mactel-support Post to : [email protected] Unsubscribe : https://launchpad.net/~mactel-support More help : https://help.launchpad.net/ListHelp
