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When I click the sound icon I only have a dummy output device there.

I have a G5 iMac I think model 8,7. I am running Ubuntu 12.04.1 for powerpc64


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I tried following the advice on but this is what I get in the terminal: root@mycomputer:/home/myuser# apt-get install linux-alsa-driver-modules-$(uname -r) Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package linux-alsa-driver-modules-3.2.0-31-powerpc64-smp E: Couldn't find any package by regex 'linux-alsa-driver-modules-3.2.0-31-powerpc64-smp' root@myuser-desktop:/home/myuser# – user89004 Sep 12 '12 at 12:42
up vote 0 down vote accepted

After much searching I finally found this one command that did the trick and the sound is crystal clear after rebooting. Here's what I entered in the Terminal:

sudo rm /etc/modprobe.d/blacklist.local.conf

Just reboot and it all works perfectly. I found the fix at the Ubuntu wiki.

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