"There is no sound output for MacBook 5.1 for Jaunty (Ubuntu 9.04) as of Alpha 5 unless "options snd_hda_intel model=mbp3" is added manually to /etc/modprobe.d/options. Adding this should not be required."
With the patch sound is working without any additional options in the option file on mbp5,1 and 5,2
the patch posted in this bug https:/ /bugs.edge. launchpad. net/ubuntu/ +source/ alsa-driver/ +bug/337314
resolves the issue listed here:
"There is no sound output for MacBook 5.1 for Jaunty (Ubuntu 9.04) as of Alpha 5 unless "options snd_hda_intel model=mbp3" is added manually to /etc/modprobe. d/options. Adding this should not be required."
With the patch sound is working without any additional options in the option file on mbp5,1 and 5,2