Slackintosh user here. I lost sound between kernels 2.6.21 and 2.6.22. The fix was to compile i2c-powermac into the kernel, instead of as a module. This ensured the i2c subsystem was initialized before the snd-aoa module was loaded, which allowed the tas sound device to be detected properly.
Not sure what the underlying issue was (udev?) but this resolved the issue for me.
Slackintosh user here. I lost sound between kernels 2.6.21 and 2.6.22. The fix was to compile i2c-powermac into the kernel, instead of as a module. This ensured the i2c subsystem was initialized before the snd-aoa module was loaded, which allowed the tas sound device to be detected properly.
Not sure what the underlying issue was (udev?) but this resolved the issue for me.
Quick specs:
PowerBook5,4 (15" 1.5GHz G4 AlBook)
kernel 2.6.24.2