Hi!

After upgrading the whole -current kernel and userland on my powerbook
g4 titanium today I can no longer hear any awacs sound on this laptop!
Awacs sound was working fine with older -current snapshots of about
March 2007. Some facts about the machine:

dmesg:

  NetBSD 4.99.27 (MACPPC) #34: Thu Aug  9 11:27:36 MEST 2007
  	root@qie:/usr/src/sys/arch/macppc/compile/MACPPC
  total memory = 256 MB
  avail memory = 239 MB
  timecounter: Timecounters tick every 10.000 msec
  init_interrupt: found OpenPIC @ pa 0x80040000, 0x80040000
  mainbus0 (root)
  cpu0 at mainbus0: 7410 (Revision 1.3), ID 0 (primary)
  cpu0: HID0 8094c0a4<EMCP,DOZE,DPM,EIEC,ICE,DCE,SGE,BTIC,BHT>, powersave: 1
  cpu0: 500.00 MHz, no-parity 1MB WB L2 cache (PB SRAM) at 2:1 ratio
  uni_n0 at mainbus0 address 0xf8000000
  ki2c0 at uni_n0 address 0xf8001000
  iic0 at ki2c0: I2C bus
  uninorth0 at mainbus0
  [...]
  awacs0 at obio0 offset 0x14000 Screamer: irq 24,9,10
  awacs0: awacs0: codec status reg 00403100
  speaker
  ext_volume 6 6
  speaker_volume 6 6
  loopthrough_volume 0 0
  audio0 at awacs0: full duplex

audioctl -a:

  name=AWACS
  version=
  config=awacs
  encodings=slinear:16,slinear_be:16,slinear_le:16*,ulinear_be:16*,ulinear_le:16*,mulaw:8*,alaw:8*
  properties=full_duplex
  full_duplex=0
  fullduplex=0
  blocksize=4096
  hiwat=16
  lowat=1
  monitor_gain=0
  mode=
  play.rate=22050
  play.channels=2
  play.precision=16
  play.encoding=slinear_be
  play.gain=127
  play.balance=32
  play.port=0x0
  play.avail_ports=0x0
  play.seek=4096
  play.samples=783872
  play.eof=0
  play.pause=0
  play.error=1
  play.waiting=0
  play.open=0
  play.active=0
  play.buffer_size=65536
  record.rate=22050
  record.channels=2
  record.precision=16
  record.encoding=slinear_be
  record.gain=176
  record.balance=32
  record.port=0x4
  record.avail_ports=0x7
  record.seek=0
  record.samples=0
  record.eof=0
  record.pause=0
  record.error=0
  record.waiting=0
  record.open=0
  record.active=0
  record.buffer_size=65536
  record.errors=0

mixertctl -av:

  monitor.output=speaker  { speaker headphones }
  monitor.master=144,144 volume
  record.source=cd  { cd mic line }
  record.record=176,176 volume

The kernel is compiled with AWACS_DEBUG.
If I try to change 'monitor.output=headphones' it doesn't work:

  awacs_set_port dev = 3, type = 2
  awacs0: switching to speaker

.. and sticks to 'monitor.output=speaker'.

Changing e. g. 'monitor_gain=32' doesn't work and sticks to

  monitor_gain=0

Another kernel output after starting mplayer is:

  trigger_output 0xd00e9000 0xd00f9000 0x1000

All audio outputting programs I tried (mplayer, mpg123, ogg123) seem
to run fine and show normal/successfull audio data output production,
but I can't hear anything.

Is this a known problem/bug? Anything else I can try?

Markus.