[Bug 1296373] Re: [PATCH] Fix sound on PowerPC

[McDonnell]

I had the no "sound card found" issue on an IBook G4 and  tried multiple
combinations of changes to /etc/modules, blacklists, and modprobes to no
avail.  All resulted in alsamixer not finding a sound card.   Then I
located the proposed patch in:

http://ubuntuforums.org/showthread.php?t=2209340&page=7

I verified that my white IBook G4 soundcard was Device 38, and applied
the patch.  It was an immediate success.  On reboot, I had a sound card,
alsamixer and alsaplayer were happy, Gmerlinmixer worked with both
headphones and speakers (auto-detect), etc.   The proposed patch worked
for my PPC.

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https://bugs.launchpad.net/bugs/1296373

Title:
  [PATCH] Fix sound on PowerPC

Status in Ubuntu:
  Confirmed
Status in hw-detect package in Ubuntu:
  Confirmed

Bug description:
  This patch is one of several needed to fix sound on PowerPC.  The
  wrong modules are loaded/blacklisted on many machines, causing sound
  not to work or worse the fatal "Fixing recursive fault rebooted is
  needed!" bug -
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1066435

  The attached patch incorporates the suggestions in this debian bug
  report https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=650588 , and
  additionally splits off the 'i2s-a' machines which nolonger use
  snd_powermac (at least that is what I understand from this linuxppc-
  dev message -
  http://comments.gmane.org/gmane.linux.ports.ppc.embedded/51204 ).

  It would be excellent if this could make it into Trusty.  I'm going to
  submit another bug on the casper package.

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