Package: awn-applets-python-core
Version: 0.2.6-2
If for any reason the controlled audio channel recorded inside user
preferences is not available anymore, the volume control applet fails to
start. The error message is:
$ avant-window-navigator
[…]
Traceback (most recent call last):
File "/usr/share/awn/applets/volume-control/volume-control.py", line 239,
in <module>
VolumeApplet(applet)
File "/usr/share/awn/applets/volume-control/volume-control.py", line 55,
in __init__
self.awn.module.get("alsaaudio", {"Ubuntu": "python-alsaaudio"},
self.init2)
File "/usr/lib/python2.5/site-packages/awn/extras/AWNLib.py", line 222, in
get
return callback(module)
File "/usr/share/awn/applets/volume-control/volume-control.py", line 68,
in init2
self.drawMainDlog()
File "/usr/share/awn/applets/volume-control/volume-control.py", line 83,
in drawMainDlog
volume.set_value(self.backend.getVolume())
File "/usr/share/awn/applets/volume-control/volume-control.py", line 212,
in getVolume
return alsaaudio.Mixer(self.channel).getvolume()[0]
alsaaudio.ALSAAudioError: Unable to find mixer control 'LineOut',0
In my case 'LineOut' doesn't exist and should be replaced with 'Master'. I
solved the problem by catching the error in 'volume-control.py', method
'getVolume', this way:
class Backend:
[…]
def getVolume(self):
try:
return alsaaudio.Mixer(self.channel).getvolume()[0]
except:
self.setChannel()
return alsaaudio.Mixer(self.channel).getvolume()[0]
The wrong channel name is then automatically replaced with the default
(existing) one.
I'm using Debian Lenny.
