microphone and built-in camera app not working

[nonresidentaliennico]

hey!

i installed ubuntu 24.10 on my machine (macbook pro m2 max). everything works perfectly except for the built-in camera app (the camera does work on browser but sometimes it's not recognized) and the microphone does not work at all. the system simply does not pick it up.

is there a workaround for this?

thanks a lot in advande!

[tobhe]

Thx for the feedback! The gnome camera app seems to have a bug where it doesn't work properly with the camera on those machines yet. For the microphone if I remember correctly there was a known issue on the M2 Pro max too, afaik a fix in the form of a kernel update is WIP.

[reviczky]

I have opened bug reports upstream:

https://gitlab.gnome.org/GNOME/snapshot/-/issues/294 https://gitlab.gnome.org/GNOME/cheese/-/issues/189 https://bugs.kde.org/show_bug.cgi?id=505059

[reviczky]

To make the camera work there are a couple of components affected:

• Enable YCbCr formats in rust-gst-plugin-gtk4, fixed in Debian with version 0.14.3-1, not yet synced with Ubuntu: https://launchpad.net/ubuntu/+source/rust-gst-plugin-gtk4
• YCbCr fixes in GTK 4.20 (https://gitlab.gnome.org/GNOME/gtk/-/commit/688946294e4e4d9ab96de20852a7cca007576305), available in version 4.20.3 or later
• Mesa fixes for Asahi OpenGL (https://gitlab.freedesktop.org/mesa/mesa/-/commit/aa9f93711692504bc216423cdff76a86b40c6fa3) and Vulkan (https://gitlab.freedesktop.org/mesa/mesa/-/commit/83b97379dc2d7f8db65fd88a8773a495ca70bbd8). These will be available for version 25.2.7 and 25.3.0-rc4 or later, not yet packaged for Ubuntu.
• Fix/Backport Pipewire assertion 'num >= 0' failed: https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2582 / https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2583, available from 1.5.82 upwards
• dma-buf kernel bug, fixed in 6.17.7-asahi: https://github.com/AsahiLinux/linux/commit/b664d6e1c94338f069399d1afc289dfc66bfdbc7

Not yet fixed:

• Timestamp issues with pipewire/gstreamer source: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/4957

Tracking the fixed packages:

Package	Fixed version	Debian	Ubuntu	Fedora	Arch
gstreamer1.0-gtk4	0.14.3	https://packages.debian.org/sid/arm64/gstreamer1.0-gtk4/download	Fixed version not yet packaged/synced from Debian	https://koji.fedoraproject.org/koji/buildinfo?buildID=2854100	https://archlinuxarm.org/packages/aarch64/gst-plugin-rsfile
gtk	4.20.3	https://packages.debian.org/sid/arm64/libgtk-4-1/download	https://launchpad.net/ubuntu/+source/gtk4/4.20.3+ds-1	Fixed version not yet packaged	https://archlinuxarm.org/packages/aarch64/gtk4
mesa	25.2.7 / 25.3.0-rc4	https://packages.debian.org/experimental/arm64/libegl-mesa0/download	Fixed version not yet packaged/synced from Debian	https://koji.fedoraproject.org/koji/buildinfo?buildID=2861872	Fixed in Asahi-ALARM 25.2.5-2 https://github.com/asahi-alarm/PKGBUILDs/tree/main/mesa
pipewire	1.5.82/1.6?	https://packages.debian.org/experimental/arm64/pipewire/download		https://koji.fedoraproject.org/koji/buildinfo?buildID=2856273
dma-buf/agx	6.17.7	https://salsa.debian.org/bananas-team/wip/linux-asahi or https://git.g3la.de/repos/-/packages/debian/linux-image-6.17.7-asahi-1-cy8aer0/6.17.7-00959-gb664d6e1c943-45	Fixed version not yet packaged in https://code.launchpad.net/~john-cabaj/+archive/ubuntu/asahi-arm	Fixed in 6.17.7-401.asahi https://copr.fedorainfracloud.org/coprs/g/asahi/kernel/packages/	Fixed in Asahi-ALARM 6.17.7 https://github.com/asahi-alarm/PKGBUILDs/tree/main/linux-asahi

Ones those are fixed, the issues with all applications/frontends will be solved, including Cheese/Snapshot/Kamoso.

[mkurz]

you can update your table

	Arch
mesa	Fixed in Asahi ALARM mesa v25.2.5-2 (shipped already) see https://github.com/asahi-alarm/PKGBUILDs/tree/main/mesa see https://github.com/asahi-alarm/PKGBUILDs/commit/0b7490e7ed3d7ce0818b5f91a359395ec7a20655

[mkurz]

Also a couple of hours ago in Asahi ALARM we already shipped the patched kernel:

• https://github.com/asahi-alarm/PKGBUILDs/tree/main/linux-asahi
• https://github.com/asahi-alarm/PKGBUILDs/commit/1dcf26ffcc137ea2e89f0dd2b6f47ef0a2aaee30
• https://github.com/AsahiLinux/linux/releases/tag/asahi-6.17.7-1
• https://github.com/AsahiLinux/linux/commit/b664d6e1c94338f069399d1afc289dfc66bfdbc7

So we just wait for the gtk 4.20.3 release and the pipewire 1.4.x patch release.