I've come up with a non-ideal fix for my problem. I found out that what
is really going on is that ubuntu is mixing up my headphone jack and
speaker outputs.
With "options snd-hda-intel model=auto" set in /etc/modprobe.d/alsa-base:
When I plug my headphones into the headphone jack, it believes it to be the
speakers and is already outputting sound. Laptop speakers do not function even
when switches in the volume control are toggled. <-----Thus headphone only sound
With "options snd-hda-intel model=arima" set in /etc/modprobe.d/alsa-base:
When I plug headphones into the headphone jack nothing happens. When I
toggle Headphone switch to 'checked' in volume control, playback can be heard
from laptop speakers! If I uncheck it, I can still get headphone sound from the
"Front" output jack as this would always be on anyhow.
When I toggle the headphone switch, I can see in alsamixergui the mute
toggles going on and off for the headphone channel. It is not possible to
toggle the mute for the PCM channel. Volume is controlled by using the PCM,
Front, or Master sliders; Headphone sliders are nonexistant.
I can also use "options snd-hda-intel model=targa" instead of armia to
acheive the same results. as far as I can tell, the other model options
do the same as 'auto'.
Any ideas?
--
Sound Card Detected, but only headphone sound
https://bugs.launchpad.net/bugs/220006
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