My Intel motherboard has an on-board audio subsystem, but I want to use some
cheap USB speakers instead. So now I have two audio systems and my problem is
that I can't get rhythmbox to use the USB speakers by default.
Here's what I've figured out:
[b]Run audiotest:[/b]
$ su
# audiotest
Sound subsystem and version: SunOS Audio 4.0 (0x00040003)
Platform: SunOS 5.11 snv_134 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%)>
*** Scanning sound adapter #2 ***
/dev/sound/usb_ac:0dsp (audio engine 1): usb_ac#0
- Performing audio playback test...
<left> ................OK
<right> ...............OK
<stereo> ..............OK
<measured sample rate 47942.00 Hz (-0.12%)>
*** All tests completed OK ***
[b]Play some audio while specifying the audio device on the command-line:[/b]
# audioctl set-control -d usb_ac#0 volume 5:5
# audioplay -d /dev/sound/usb_ac\:0 sample.au
This works.
[b]Play some audio while specifying the AUDIODEV environment variable:[/b]
# AUDIODEV=/dev/sound/usb_ac\:0
# export AUDIODEV
# audioplay sample.au
# rhythmbox
audioplay plays audio. rhythmbox plays audio when launched from the
command-line but not from the Gnome Panel.
[b]Reset the links for /dev/audio and /dev/audioctl:[/b]
# rm /dev/audio /dev/audioctl
# ln -s /dev/sound/1 /dev/audio
# ln -s /dev/sound/1ctl /dev/audioctl
# audioplay sample.au
audioplay plays audio, but rhythmbox doesn't. I tried this with both
/dev/sound/{1,1ctl} and /dev/sound/{usb_ac:0,usb_ac:0ctl}, with the same
results.
So I get audio when I specify the audio device from the command-line or set the
environment variable. But resetting the links work entirely.
I tried a few other things:
* gstreamer-properties(1), but the device pop-up menu was grayed out and said
Unsupported.
* Volume Control and Volume Control Preferences. But the device pop-up menu
only shows audiohd#0 (OSS v4 Audio Mixer).
Any ideas?
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