I've been having intermittent audio static problems ever since I've moved
from SXCE to OpenSolaris. I never experienced these before, on SXCE.
I'm getting the playback sound (as with audiotest) but it comes with
static.
If I log out and log back in, static problem goes away but comes back
in an hour or two.
1. System is a Sun Ultra-24
2. System is running 2009.06 updated to snv_122
3. I've applied the latest audiohd drivers, described at:
http://www.opensolaris.org/jive/thread.jspa?threadID=112523&tstart=0
4. audiotest will exhibit the static problem (see output below)
Sound is coming to <left>, <right>, and <stereo> correctly.
5. % cat /dev/sndstat
SunOS Audio Framework
Audio Devices:
0: audiohd#0 Intel HD Audio, ICH9 (DUPLEX)
Mixers:
0: audiohd#0 Intel HD Audio, ICH9
Realtek HD codec: ALC888
6. mixerctl -C
DEVICE CONTROL VALUE POSSIBLE
audiohd#0 volume 72 0-100
audiohd#0 front 75:75 0-100:0-100
audiohd#0 center 75 0-100
audiohd#0 lfe 21 0-100
audiohd#0 rear 75:75 0-100:0-100
audiohd#0 surround 75:75 0-100:0-100
audiohd#0 headphones 70:70 0-100:0-100
audiohd#0 mic 50:50 0-100:0-100
audiohd#0 line-in 50:50 0-100:0-100
audiohd#0 monitor-gain 0:0 0-100:0-100
audiohd#0 record-source mic line-in,mic
7. Yesterday, this immediately eliminated the static problem but
today it doesn't help:
# svcadm disable audio
8. I'm using the headphone (light green) port.
9. System is available on Sun internal network, if anyone wants to
take a look.
--------------------------------------------------------
% audiotest
Sound subsystem and version: SunOS Audio 4.0 (0x00040003)
Platform: SunOS 5.11 snv_122 i86pc
*** Scanning sound adapter #1 ***
/dev/sound/audiohd:0dsp (audio engine 0): audiohd#0
- Performing audio playback test...
<left> ................OK
<right> ...............OK
<stereo> ..............OK
<measured sample rate 47922.00 Hz (-0.16%)>
*** All tests completed OK ***
