Hi, on my acer-extensa 5620 i had the same problem with internal mic. after commenting the original line and adding the keyword 'model=acer-extensa' it worked properly.
alsa-base.conf
# options snd-hda-intel power_save=10 power_save_controller=N options snd-hda-intel power_save=10 power_save_controller=N model=acer-extensa
Hi, on my acer-extensa 5620 i had the same problem with internal mic. after commenting the original line and adding the keyword 'model= acer-extensa' it worked properly.
alsa-base.conf
# options snd-hda-intel power_save=10 power_save_ controller= N controller= N model=acer-extensa
options snd-hda-intel power_save=10 power_save_