Anand Buddhdev arb@anand.org writes:
I don't use Gnome, so I can't describe the precise steps. I think that if you right click on the little volume control applet in the top right-hand corner, it will give you the choice of opening the mixer.
It wasn't there, so I added one.
I actually solved the problem now, or rather found a "good enough" workaround. The sound works fine with headphones, but not with my speakers, but previously I didn't even think of trying the headphones since I didn't get the speakers to work (I'm using a Dell Latitude D810 laptop with speakers built in). And no, there is no problem with my speakers, since they work fine in Windows XP and in Knoppix. But I don't have any muted channels in any of the mixer programs.
But I can accept using the headphones for the time being, especially since my main use of sound is internet radio at my workplace.
Regards Ingemar