** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/305750
Title:
Subwoofer not working in Intel Macbooks
Status in ALSA driver:
New
Status in Mactel Support:
Confirmed
Status in “linux” package in Ubuntu:
Fix Released
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
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