Comment 10 for bug 305750

I'm having this same problem on a MacBook 5,2

if I use:

model=mb5
Sound works after unmuting HP, but no headphones detection and no subwoofers

model=mbp3
Headphones detection works, sound works but no subwoofers

model=asus-a7m
Headphone detection doesnt works, but subwoofers works and sound seems much cleaner.

I'm with linux-backports-modules-alsa-karmic-generic installed, and no changes with that.

Ubuntu Karmic 9.10 with alsa-backport
MacBook 5,2

Don't know what kind of extra information is needed for this but I can inform if requested.

Thanks.