No sound input

[Stefan Bruda]

Hi.

Sound input does not work at all on my Tibook rev III.  In fact,
input controls do not even appear in the mixer.  Does anybody have any
suggestion (drivers, etc.)?  Here is the relevant information:

[bruda@Titi ~]% cat /proc/cpuinfo
cpu             : 7455, altivec supported
clock           : 667MHz
revision        : 2.1 (pvr 8001 0201)
bogomips        : 665.19
machine         : PowerBook3,4
motherboard     : PowerBook3,4 MacRISC2 MacRISC Power Macintosh
board revision  : 00000000
detected as     : 73 (PowerBook Titanium III)
pmac flags      : 0000000b
L2 cache        : 256K unified
memory          : 512MB
pmac-generation : NewWorld

[bruda@Titi ~]% uname -a
Linux localhost 2.4.21-ben2 #47 Fri Aug 22 18:06:42 EDT 2003 ppc ppc ppc GNU/Linux

(running YDL 3 save for the kernel; sound input still does not work
with the YDL stock kernel)

[bruda@Titi ~]% dmesg | grep sound
PowerMac Snapper  DMA sound driver rev 016 installed

[root@Titi bruda]# cat /dev/sndstat
PowerMac Snapper DMA sound driver rev 016 :
Core driver edition 01.06 : PowerMac Built-in Sound driver edition 00.07
HW rates: 44100 s/sec
HW AFMTS: signed 16 bit BE
                 === Formats & settings ===
Parameter                 soft                hard
Format   :    signed 16 bit BE    signed 16 bit BE
Samp Rate:         44100 s/sec         44100 s/sec
Channels :              stereo              stereo
                 === Sound Queue status ===
Allocated: Buffers  Size
    write:       4 32768
Current  : MaxFrg FragSiz MaxAct Frnt Rear Cnt RrSize A B S L  xruns
    write:      4   32768      4    0   -1   0      0 0 0 0 0      4

(note the utter absence of any information regarding read sound queues)

[bruda@Titi ~]% rec a.wav
Send break (control-c) to end recording
sox: Can't open input file '/dev/dsp': No such device or address

(I am just stating the obvious with this one ;-) ).

Any suggestion is appreciated.

Many thanks in advance,
Stefan

-- 
If it was so, it might be; and if it were so, it would be; but as
it isn't, it ain't. That's logic.
    --Lewis Carroll, Through the Looking-Glass