I checked with latest upstream kernels (2.6.33 and 2.6.34-rc6), but the issue remains. I now installed the latest version of alsa manually (1.0.23). Like that I have the possibility to switch off the speaker without switching off the headphones. Auto-mute still doesn't work and the channels seem to be mixed. The headphones are to be found as front, while the channel headphones does nothing (perhaps the channel for the docking station??).
** Tags added: lucid -- sound output via headphone is not working correctly (alsa doesn't distinguish between speaker and front channel) https://bugs.launchpad.net/bugs/498829 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