Ubuntu – Microphone not working Ubuntu 19.10


I have an Acer Swift 3 SF314-56 with Ubuntu 19.10 installed (the card is a Realtek ALC256).

My microphone does not work.
I've tried lot of thing such as put the line "options snd-hda-intel model=acer-headset-multi" at the botton of the file "/etc/modprobe.d/alsa-base.conf". I've also installed HDAJackRetask and connected pin 012 and 013 to internal mic and bot ovveride. I've set Mic_Boost on alsamixer equal to zero.

enter image description here

Well, nothing worked. The mic is now not dectected at all.
Could someone help me?

I missed an infornation. Ubuntu is installed in dual boot alongside windows 10 (which I use rarely). On windows the microphone is detected and works well.

Best Answer

  • I have been struggling through this issue for months. Apparently this is a recognized issue with devices using the Realtek ALC256 card (which includes the Acer Swift 3). There is a long thread on something similar on bugzilla.

    I finally stumbled across a workaround to enable use of headset mics here: acer swift 3: microphone not working with ubuntu 18.04, to add options snd-hda-intel model=dell-headset-multi to the alsa-base.conf. You can follow the steps mentioned there (I did however have to restart my computer as alsa force-reload did not do the trick for me). This worked for me on Acer Swift 3 and Ubuntu 20

    Please note however, the onboard mic will still not work.