FYI: I tested again with a current Ubuntu Installation, Lubuntu 15.04, Kernel 3.19.0-21-generic #21-Ubuntu SMP (same Asus Notebook as noted above). The good news is the "switching bug" disappeared. The bad thing is that there is still no (speaker) sound yet, not with the installation default and not with manually trying the entry working for me in an earlier ubuntu version - options snd-hda-intel model=laptop-eapd position_fix=1).
Here is a recent alsa-info: ALSA information is located at http://www .alsa-project.org/db/?f=dd668e30fbdc329986902f48d7aa9229a17281e6 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1316156 Title: speakers audio won't work - pavucontrol is switching continually between speakers and headphones To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1316156/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs