[PLUG] When unmute isn't

[jeff <jeffv@op.net>]

I had lots of work to do today as well as social obligations, forcing me 
to take my laptop along.  The first thing I noticed was that I forgot to 
bring the mouse.  You see, I have the attention span of a gnat and 
simply putting the mouse in the laptop bag would have been too much for me.

That aside, I had to operate the laptop without a mouse.  Trackpad had 
been disabled earlier, as it bothered me and took offense when the 
laptop became airborne (don't ask).

I adore the challenge of operating strictly by keyboard.  At one point I 
had to turn the volume up and hit MUTE by mistake.  So I unmuted and 
made the volume adjustment, only I couldn't hear anything.  I plugged 
headphones in and noted that the onscreen graphic indicated MUTE.  I 
unmuted again, with similar results.

No amount of muting and unmuting would produce sound.  So much for all 
the work I had to do.

When I got home, I followed a hunch and visited the speaker icon on the 
taskbar (Xubuntu).  There I had about FOUR choices of hardware/software 
to make volume adjustments:

HDA ATI SB (Alsa mixer)
HDA ATI HDMI (Alsa mixer)
Playback: RS880 HDMI audio [Radeon HD4200 series] Digital Stereo HDMI 
(PulseAudio Mixer)
Playback: Built-in Audio Analog Stereo (PulseAudio Mixer)

And the winner was the last one, which had become muted and wouldn't 
unmute with the hardware controls.


Is there an actual good reason for this?




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