I have a 24" aluminium mac (model iMac9,1) with an nVidia MCP79 audio
card. I can get the sound to work, but it's not stable. I can make it
degrade into digital static in usually less than 60 seconds by doing the
following:
1) Open a terminal window and type: while true; do echo '^G'; sleep 1; done
(Where ^G = control-v control-g)
2) Play a youtube video (so the OS must mix two sound sources)
3) Adjust volume up and down
I have tried the following:
1) With the stock 2.6.31-20-generic (ubuntu 9.10) kernel (alsa 1.0.20):
1.1) option snd-hda-intel=mb5
1.2) option snd-hda-intel=imac24
1.3) option snd-hda-intel=mac24
1.4) option snd-hda-intel=mbp3
1.5) option snd-hda-intel=mb31
2) Tried 1.* w/ linux-backports-modules-alsa-karmic-generic
3) Tried 1.* w/ alsa-driver-1.0.22.1 compiled from source
Is there anything else I can try? All ideas welcomed w/ open arms -- I'm
getting desperate.
Thanks,
Michael
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