[Bug 480796] Re: Speakers not muted when headphones inserted (Macbook 5.1, late 2008)

[Alex Murray]

I've developed a patch against alsa-driver-1.0.22.1 which should fix
this (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: "Patch to enable speaker muting when headphones inserted on MB(P) 5,1 / 5,2"
   http://launchpadlibrarian.net/37844781/alsa-driver-1.0.22.1-mb5.patch

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Speakers not muted when headphones inserted (Macbook 5.1, late 2008)
https://bugs.launchpad.net/bugs/480796
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