I'm running Ubuntu 21.04 on an 8th Gen Core i5 Acer Aspire E5-576G. The laptop has a combo jack that works properly on Windows.
When I plug a device into the audio jack on Windows, it lets me choose whether it should treat it as a microphone, speaker, headphones, headset, line in, etc. However, when I boot into Ubuntu, the only options I find are headphones and headset.
Ubuntu 21.04 Select Audio Device Image
I've seen in another video that there is supposed to be an option for Microphone, such that when I plug an external microphone into the laptop, the built in speakers still work. Since headset and headphones are the only options presented on my laptop, when I plug a device into the combo jack, it makes the built in speakers unavailable, even on pavucontrol.
Ubuntu 16.04 Select Audio Device Image - with Microphone
I've tried the solution in this link which involves adding the following lines to /etc/modprobe.d/alsa-base.conf:
options snd-hda-intel position fix=1
options snd-hda-intel model=<model>
Where <model> is the sound card model that matches the laptop according to this website.
This doesn't work though to add the microphone option in my laptop. Would this even be possible?
