I can confirm this bug for Ubuntu 9.04 Alpha 5 64-Bit with all updates
as of today. There have been issues with Ubuntu and this MacBook Pro
rev. 3 here in the past (eg one day after some update I couldn't get any
sound any more at all), and sound quality has been low and max volume
has been too
:~$ cat /proc/asound/cards
tells me:
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0x9b50 irq 20
bash utils_alsa-info.sh --no-upload (the wiki says you'd have to type bash
alsa-info.sh --no-upload but this is obviously wrong) outputs a
It seems to me that the issue with low level and poor sound quality is because
the third speaker of MacBooks aren't used. This is reported in this alsa-bug:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4086
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Hardy: sound level low, poor quality on Macbook Pro
Many of your audio issues should be addressed in upstream alsa-kernel
git. Will you try a git snapshot of alsa-driver, please?
** Changed in: linux (Ubuntu)
Sourcepackagename: alsa-driver = linux
--
Hardy: sound level low, poor quality on Macbook Pro
https://bugs.launchpad.net/bugs/234165
You
I have just noticed (simply didn't need this before) that the microphone
is muted. I have played with alsamixer, kmix, artscontrol, krec,
audacity - absolutely no sound input. I don't know how to debug this
problem, everything in the interface of the applications tried suggests
that the input
FYI, I have just installed alsa-1.0.17rc2 (modules, firmware, lib,
utils) and there is no improvement.
--
Hardy: sound level low, poor quality on Macbook Pro
https://bugs.launchpad.net/bugs/234165
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Bugs, which is subscribed to
The report above is wrong, it seems, the output of alsa-info.sh shows
Driver version: 1.0.16
Library version:1.0.17rc2
Utilities version: 1.0.17rc2
Modules install seemed to go OK though, is there something similar to
/etc/default/linux-restricted-modules-common for alsa?
** Attachment
Sorry, didn't see that page, output attached. Thank you for your help.
** Attachment added: alsa-info.txt
http://launchpadlibrarian.net/14880883/alsa-info.txt
--
Hardy: sound level low, poor quality on Macbook Pro
https://bugs.launchpad.net/bugs/234165
You received this bug notification
Please run the alsa-info.sh debugging script noted on the
DebuggingSoundProblems wiki page, and attach the debugging output (in
/tmp) to this bug.
** Changed in: alsa-driver (Ubuntu)
Assignee: (unassigned) = Daniel T Chen (crimsun)
Status: New = Incomplete
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Hardy: sound level low,
** Attachment added: alsamixer output
http://launchpadlibrarian.net/14664184/alsamixer.png
--
Hardy: sound level low, poor quality on Macbook Pro
https://bugs.launchpad.net/bugs/234165
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
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