[gstreamer-bugs] [Bug 478512] [alsamixer] volume control slider not working

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-base | Ver: 0.10.x

Patrick Walton changed:

           What    |Removed                     |Added
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                 CC|                            |pcwalton at uchicago.edu




------- Comment #9 from Patrick Walton  2007-12-28 03:20 UTC -------
Additional information can be found here.

https://bugs.launchpad.net/ubuntu/+source/gstreamer/+bug/158590

I'm getting this too, so I can provide a bit more information.

This is a problem that seems to be exclusively with USB audio output.  The
issue is with the gstreamer ALSA mixer plugin - it seems that gstreamer somehow
does not set the ALSA mixer variables in the proper way (i.e. how alsamixer and
gnome-alsamixer do it). If any gstreamer-based mixer app is open and has access
to the mixer component, then the command-line alsamixer will exhibit the same
erratic behavior. Only after closing all gstreamer-based mixer apps will
alsamixer work.


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