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).
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=dd668e30fbdc 329986902f48d7a a9229a17281e6