[AG-TECH] linux audio mixer wierdness

bernholdtde at ornl.gov bernholdtde at ornl.gov
Fri Mar 22 08:58:13 CST 2002

I now have a situation on my audio machine where every time I change
rooms, I not only have to click "Talk" in RAT, but I also _have to_
fiddle with the Linux audio mixer in order to get audio off my
machine.  More specifically, in the mixer, I have to click the
"Record" button for the "Line" input -- even if it is already
clicked. (Equivalently, I can click "Record" for another input and
then click back to "Line".)

I don't know if there is a cause-effect relationship, but this
behavior began yesterday, during an AG session when we were asked to
run our audio through VTC because of a (known) multicast problem
between ESnet and Abilene.  It also seems (I wasn't the op at the
time) that two RATs may have been running for a while on this machine.

Has anyone seen behavior like this before?  Its wierd, annoying, and
kind of complex to explain to the less experienced node ops we have
here.  I'd very much like to "fix" it.

BTW, I'm running Linux 6.2 with OSS drivers, the standard linux audio
mixer and standard AG software install.

Thanks for any help!
David E. Bernholdt                   |   Email: bernholdtde at ornl.gov 
Oak Ridge National Laboratory        |   Phone: +1 (865) 574 3147    
http://www.csm.ornl.gov/~bernhold/   |   Fax:   +1 (865) 574 0680    

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