[Bug 23487] No sound on PowerBook 17" 1.67GHz (PowerBook5,7)

[chombier]

Public bug report changed:
https://launchpad.net/malone/bugs/23487

Comment:
Just tried with linux-image-2.6.15-13.18, and it's not working.

But looking into the sound driver source code for this kernel, I see
that the PowerBook5,7 case doesn't matches the right value.

The 0x50 case should be for the 12" iBook, according to my first post in this bug.
The PowerBook5,7 has the 0x40 value, which is not in the switch(layout_id).

I'll add it and try again.