Comment 9 for bug 1315156

The full workaround sequence is the one I posted in the updated description, not the comments. (There's no such package as just "nouveau", so sudo apt-get remove nouveau won't do anything, and the drivers dialog does a remove not the here-required purge.)

I also have the "nouveau W[ PFIFO][0000:01:00.0] INTR 0x01000000: 0x00000005" messages when running nouveau, sometimes ending in a crash (bug 1243557), and can't suspend with either driver (bug 1333417 / bug 1333431). I don't have HDMI sound so can't test that, but would suggest filing a separate bug for that problem.