HI,
My local opensolaris user group guru advised me to raise my audio
problems with this list.
I started with a new HP pavillion DV6 laptop & installed opensol 2009.06
- which i see from uname -a is snv_111b.
Once the X server starts I get white noise from the speakers. I can
stop this by plugging in headphones but it starts again shortly after.
Re-plugging the headphones turns the noise off again. THis makes sense
as I am redirecting the audio output & it would appear that the
headphones are fine. I imagine that the driver touches the devices
several times during the boot hence the noise restarts.
The white noise is at mid-level to high volume.
After a while, I determined that there were other sounds (welcome
jingles etc) coming out but but they are very hard to hear.
This appears to be an near exact match for bug 9308.
A bit more experimentation : headphones get clean & clear jingles &
system sounds. I have not been able to play any complex audio files etc
but I never expected totem & the cd player etc to work out of the box
anyway.
It seems that generating any sound thru the speakers - eg, by playing a
theme sound with the headphones unplugged - starts the white noise again.
I have completed an image upgrade from the dev repository (now at
snv_133). It did not solve the problem (in fact, it broke the package
GUI & made the wired network a bit flaky but I will deal with that
later). What the upgrade did do was change the problem footprint slightly :
THe white noise now lasts for the duration of the boot and I cannot stop
it by plugging in headphones. It stops when I log in but if I generate
a sound (eg, by playing with system sounds), it comes back - I can still
hear the correct sound under the noise though. Now, I can add the
headphones back and stop the sound : but only if I generate a sound - it
appears that the audio redirection does not happen until an audio event
happens.
I have gathered a little information that may be relevant :
ste...@gollum:~$ prtconf -PvD | grep -i audio
pci103c,3629, instance #0 (driver name: audiohd)
name='audiohd_beep' type=int items=1
dev_link=/dev/sound/audiohd:0mixer
dev_link=/dev/sound/audiohd:0dsp
dev_path=/p...@0,0/pci103c,3...@1b:sound,audio0
dev_link=/dev/sound/audiohd:0
dev_path=/p...@0,0/pci103c,3...@1b:sound,audioctl0
dev_link=/dev/sound/audiohd:0ctl
audio, instance #0 (driver name: audio)
dev_path=/pseudo/au...@0:sound,sndstat0
lx_audio, instance #0 (driver name: lx_audio)
This seems ok? I tried adding pci103c,3629 to /etc/driver_aliases for
audiohd as I have had success with this technique before. Not this
time. And the driver is clearly already bound in any case.
ste...@gollum:~$ pfexec audiotest
Sound subsystem and version: SunOS Audio 4.0 (0x00040003)
Platform: SunOS 5.11 snv_133 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 47968.00 Hz (-0.07%)>
THis seems OK - and makes sense in that I can hear system sounds, it is
just that there is white noise over the top of it.
ste...@gollum:~$ pfexec scanpci
<...snip...>
pci bus 0x0000 cardnum 0x1b function 0x00: vendor 0x8086 device 0x293e
Intel Corporation 82801I (ICH9 Family) HD Audio Controller
<...snip...>
As best I can tell, this is a fairly standard audio device - nothing
wacky about it? This is a dual boot box & Windows7 seems to have no
issues with the audio device so I presume the problem is in the opensol
driver.
Tried OSS drivers as I have used them successfully on Solaris 10. Even
though they are claimed to support OpenSOl, all I got was a panic.
Backed out my upgrade and re-did it. I have since learned about an OSS
port called Boomer that has been integrated from build 115. Is there
any trickery about using this?
Tried xset -b and muting the speakers with the gnome volume slider -
made no difference to the white noise.
Rgds
Steve
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