When installing Ubuntu 10.10 in Macbook Pro (7,1), you will facing several issue. Here are list the problem and solution :
1. Sound card doesn't works
To fixing this problem, you will do 2 steps :
/etc/modprobe.d/alsa-base.conf and put
options snd-hda-intel model=mbp55 at end of line.
alsamixer in command and UN-MUTE front speaker by type M.
2. Keyboard backlight Macbook Pro doesn't works
To fixing this problem, you need to remove mouseemu by
sudo aptitude remove mouseemu