On UNR 9.04 on the Lenovo S10, this seems to be related to bug #312403. When I change the line on /etc/modprobe.d/alsa-base.conf from
options snd-hda-intel model=basic
to
options snd-hda-intel model=lenovo
the speakers mute properly when I insert the headphones, but then the internal microphone stops working.
On UNR 9.04 on the Lenovo S10, this seems to be related to bug #312403. When I change the line on /etc/modprobe. d/alsa- base.conf from
options snd-hda-intel model=basic
to
options snd-hda-intel model=lenovo
the speakers mute properly when I insert the headphones, but then the internal microphone stops working.