David Dooling wrote:
> On Wed, Feb 21, 2007 at 11:14:42AM -0600, Robert Citek wrote:
>> How does one control the headset/external speaker sound under Ubuntu 6.06?
>>
>> I have a Dell Latitude D610 running Ubuntu 6.06.  The on-board speakers
>> are controlled just fine by the sound applet that's on the dock (or
>> whatever that bar across the top is called.)
>>
>> However, that same applet does not seem to control the headset/external
>> speaker volume.  So, even though the applet says sound is low or muted,
>> when I plug in an external set of speakers, the sound is on.  And it is
>> on at full volume.  This makes playing MP3s or using Skype a bit of a pain.
>>
>> Under System > Preferences > Sound only one sound card is listed.
> 
> Each sound card provides a lot of devices.  Looks like Ubuntu uses
> Alsa.  When playing sound through the speakers/headphones, open
> alsamixer and play with the levels on Master, Headphone, PCM, etc.
> Master and one other one (maybe Headphone) should alter the volume.

That worked.  I also added a comment to an existing bug report:

https://launchpad.net/ubuntu/+source/gnome-applets/+bug/84505/comments/4

> The applet probably is tied to PCM (you can probably determine this by
> looking at the applet config).

It's supposed to be tied to Master.  However, if I right click on the
applet (Volume Applet 2.14.3) and click on Open Volume Control, I can
then adjust the Headset volume.

Thanks, David, for the nudge in the right direction.

Regards,
- Robert

 
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