Found in

• 108.0a1 (20221016093143)

Affected versions

• 108.0a1 (20221016093143)
• 107.0b2
• 106.0.1

Tested platforms

• Affected platforms: Ubuntu 22.04.01
• Unaffected platforms: Windows 10x64

Preconditions

• have a webcam and headphones connected to the Ubuntu machine (double 3.5mm jack)

Steps to reproduce

1. Open https://jumpch.at/ and join a meeting on Ubuntu 22.
2. Join the same meeting on another computer.
3. Unplug the headphones on Ubuntu 22.

Expected result

• The microphone is changed to one from the camera and audio input works.

Actual result

• There is no audio input only if the headphones are plugged back in.

Regression range

• Will search for one asap.

Additional notes

• I cannot reproduce the issue on Windows 10x64.
• Plugging the microphone jack back will make the microphone to work again.

Tried searching for a regression range but with no luck. Unfortunately I cannot open webpages on older Firefox 91.0a1 (2021-07-02) builds on Ubuntu 22.04 due to tab crashes. On this build, I can also reproduce the issue.
I have tried to reproduce the issue on Ubuntu 20.04 laptop with a Headset but the issue does not reproduce. I have also tried to reproduce the issue on a Ubuntu 20.04 VM on the same machine that Ubuntu 22.04 is installed with the same webcam and headphones but with no luck.
Given the above, I will remove the regression wanted flag. Thank you!