Having the same problem with a 2017 12” Macbook (the Macbook10,2). The microphone shows up as “(unplugged)” in pavucontrol and pacmd regardless of if I have the headset plugged into the combo jack or not. Headphones are detected and work. The internal mic is still accessible and the Microphone input seems to be mirrorring it (could be to do with some chip-level switching that somehow doesn’t happen on Linux?). I’ve tried inputting all choices of model available in the CS4208 quirk list for PulseAudio (there isn’t one for my particular model) into alsa-base.conf and nothing has changed (having nothing in alsa-base.conf, which I did before attempting this fix, also makes no difference). I’m running Debian 10 with kernel 4.19.0-17-amd64.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1410618 Title: MacBook Air 6,2 TRRS Headset Mic Not Working Status in alsa-driver package in Ubuntu: Confirmed Bug description: Hello, I'm running Ubuntu Gnome 14.04 on a new MacBookAir6,2 with the Cirrus Logic CS4208 and would love to get the microphone part of the TRRS connector working. Mac OS picks up and utilizes the TRRS headset mic without issue so I know the hardware is a go. With the headset plugged in, running sudo hdajacksensetest -a results in: Pin 0x05 ( Digital Out, HDMI): present = No Pin 0x06 ( Digital Out, HDMI): present = No Pin 0x07 ( Digital Out, HDMI): present = No AlsaInfo output here: http://www.alsa-project.org/db/?f=cabc8cab44d308c8a3898c66d48d9be4fc5ccf83 I opened up hdajackretask to find four pins: Green Headphone Pin ID: 0x10 Headphone Internal Speaker Pin ID: 0x12 Internal speaker Pink Mic Pin ID: 0x18 Not connected Internal Mic Pin ID: 0x1c Internal mic Unplugging and replugging the headset changes the Output device in sound settings from Headphones to Speakers so that works, but nothing in the input tab ever changes. It always lists two devices: Internal Microphone and Microphone. Both of these seem to actually be the internal microphone in the mac - either works without the headset connected at all. So I'm not really sure how to proceed from here, but I'd be happy to run whatever diagnostic tests might prove useful and/or even contribute code toward a fix - but I just have no idea where to start. Is it as simple as just finding the right pin and telling the system to use it as a microphone? Similar bug report here: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/950494 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1410618/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
