[Sporadic/Rare] Firefox no longer sees cameras after 1. opening jitsi page, 2. enabling camera access, 3. closing the entirety of firefox in the middle of jitsi call

Describe your issue

Firefox no longer sees cameras after 1. opening jitsi page, 2. enabling camera access, 3. closing the entirety of firefox in the middle of jitsi call. It's like camera is still somehow occupied or blocked, even though no process is accessing it anymore. After that happens, firefox will only show a "sun6i-csi-capture" and no longer any cameras:

What's the expected behaviour?

Cameras work even after putting them to use and then unexpectedly quitting firefox.

What's the current behaviour?

Quitting firefox in the wrong moment when using cameras seems to make them unusable after firefox is launched again.

How to reproduce your issue?

1. open some jitsi host page in firefox,
2. start a jitsi meeting with only yourself,
3. enable camera access to all cameras for the web page and switch output in jitsi to back camera which should an actual realtime grainy image
4. let it run for a minute or so
5. go into phosh overview and close the entirety of firefox in the middle of jitsi call, by swiping up the firefox window
6. wait a few seconds then open firefox again and try to repeat (at which point you'll find the back camera to be missing and you can't no longer get any feed with an actual realtime image)

What device are you using?

PinePhone Allwinner

On what postmarketOS version did you encounter the issue?

• edge (master branch)

• v24.12

• v24.06 (supported until 2025-01-23)

• I confirm that the issue still is present after running sudo apk upgrade -a

On what environment did you encounter the issue?

Environments

• GNOME Shell on Mobile
• Phosh
• Plasma Mobile
• Sxmo (Wayland/Sway) Please post the output of sxmo_version.sh
• Other: Please fill out

Which init system are you using?

• OpenRC
• systemd

How did you get postmarketOS image?

• from https://images.postmarketos.org
• I built it using pmbootstrap
• It was preinstalled on my device

What's the build date of the image? (in yyyy-mm-dd format)

very old, multiple upgrades

Additional information

changed title from Firefox no longer sees cameras after 1. opening jitsi page, 2. enabling camera access, 3. closing the entirety of firefox in the middle of jitsi call to [Sporadic/Rare] Firefox no longer sees cameras after 1. opening jitsi page, 2. enabling camera access, 3. closing the entirety of firefox in the middle of jitsi call

I did my best to make this happen again after a reboot, but so far I failed. So this seems to be some rare unlucky bug I ran into. If somebody else ever runs into this, please comment especially if you find out how to reliably trigger this.

added camera device-pine64-pinephone release-v24.12 ui-phosh labels