mactel-support team mailing list archive

[Daniel T Chen <seven.steps@xxxxxxxxx>]

Thanks for the feedback.

** Package changed: alsa-driver (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu)
       Status: New => Fix Committed

** Also affects: linux-backports-modules-2.6.31 (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: linux-backports-modules-2.6.31 (Ubuntu)
       Status: New => Fix Released

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Subwoofer not working in Intel Macbooks
https://bugs.launchpad.net/bugs/305750
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Support, which is the registrant for Mactel Support.

Status in ALSA driver: Unknown
Status in Mactel Support: Confirmed
Status in “linux” package in Ubuntu: Fix Committed
Status in “linux-backports-modules-2.6.31” package in Ubuntu: Fix Released

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