ALSA not working in 2.6.5 Kernel (PB G4 1G)

[Hong Jiang <addrhub-mldqj@yahoo.com>]

Hi, all,

I upgraded the kernel from 2.4.25 to 2.6.5 today, by "apt-get install 
kernel-source-2.6.5" and building it afterward. After reboot Arts said 

Sound server informational message:
Error while initializing the sound driver:
SNDCTL_DSP_SETFMT failed - Invalid argument
The sound server will continue, using the null output device.

The following is in the output of 'dmesg':
pmac: can't request resource 0!
no PMac soundchip found

I'm using a PowerBook G4 1G 12inch. Does anyone have the same problem?
I also attached the output of lsmod.

Thanks!

Regards,
--Hong

toe:/home/hong# lsmod
Module                  Size  Used by
ds                     24132  0
yenta_socket           19552  0
pcmcia_core            73588  2 ds,yenta_socket
slip                   18596  1
snd_pcm               123512  0
snd_page_alloc         13700  1 snd_pcm
snd_timer              30660  1 snd_pcm
snd                    67544  2 snd_pcm,snd_timer
eth1394                25384  0
ohci1394               42468  0
ieee1394              133016  2 eth1394,ohci1394
ehci_hcd               36132  0
ohci_hcd               25284  0
uninorth_agp            8640  1
agpgart                42732  1 uninorth_agp
i2c_keywest            12164  0
dmasound_pmac          95972  0
dmasound_core          23408  1 dmasound_pmac
soundcore              12420  2 snd,dmasound_core
i2c_core               28036  2 i2c_keywest,dmasound_pmac