I confirm your solution works, Stefan, on my HP DV2620CA with an Nvidia Sound card. I had a similar problem, although without any indication from the computer leds.
This seems to be related to bugs 383385 and maybe 444385 -- Regression: frequent popping sound with light indicating that sound is supposed to be muted https://bugs.launchpad.net/bugs/442463 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
