Camera (gnome-snapshot) "No Camera Found"

[corradoventu]

In Ubuntu 24.04 cheese has been removed and replaced by Camera (gnome-snapshot) but camera does not work
tested on 3 different PC with different webcams.
https://bugs.launchpad.net/ubuntu/+source/gnome-snapshot/+bug/2058131
same problem with gnome-snapshot new version
https://bugs.launchpad.net/ubuntu/+source/gnome-snapshot/+bug/2060390

[Claus7]

Hello,

also affected from this bug. In app store is found under debian packages as camera. Also, it doesn't follow the light theme.

Regards!

[jbicha]

We should be getting a new pipewire version soon that improves some issues with webcams, but it still doesn't completely fix my issues.

You may want to report your issues upstream to either Snapshot or Pipewire or both. I have done that this week.

[corradoventu]

After installing pipewire 1.0.5-1 from proposed and reboot Snapshot is working

[jbicha]

Yay!

I still have something like a race issue with wireplumber on my computers. https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/3960

[#&thj^%]

Not related to the topic, but yesterday's upgrades with Bluez, Wireplumber fixed all audio on my end.

Thanks for the Link jbicha

EDIT:

apt-cache policy wireplumber pipewire
wireplumber:
Installed: 0.4.17-1ubuntu4
Candidate: 0.4.17-1ubuntu4
Version table:
*** 0.4.17-1ubuntu4 500
500 http://us.archive.ubuntu.com/ubuntu noble/main amd64 Packages
100 /var/lib/dpkg/status
pipewire:
Installed: 1.0.5-1
Candidate: 1.0.5-1
Version table:
*** 1.0.5-1 500
500 http://us.archive.ubuntu.com/ubuntu noble/main amd64 Packages
100 /var/lib/dpkg/status

[corradoventu]

same wireplumber and pipewire ... fixed all audio, but camera still does not work for me

[#&thj^%]

Mine works with:

apt policy webcamoid
webcamoid:
Installed: 9.1.1-1build6
Candidate: 9.1.1-1build6
Version table:
*** 9.1.1-1build6 500
500 http://us.archive.ubuntu.com/ubuntu noble/universe amd64 Packages
100 /var/lib/dpkg/status

Hardware is: "Bison Electronics Inc. Integrated Camera" and snapshot works as well on my end.

It has a few more depends than cheese:

apt depends webcamoid
webcamoid
Depends: qml-module-qt-labs-folderlistmodel
Depends: qml-module-qt-labs-settings
Depends: qml-module-qtqml-models2
Depends: qml-module-qtquick-controls
Depends: qml-module-qtquick-controls2
Depends: qml-module-qtquick-dialogs
Depends: qml-module-qtquick-extras
Depends: qml-module-qtquick-privatewidgets
Depends: qml-module-qtquick-templates2
Depends: qml-module-qtgraphicaleffects
Depends: qml-module-qt-labs-platform
Depends: webcamoid-data
Depends: webcamoid-plugins
Depends: libavkys9 (>= 9.1.1)
Depends: libc6 (>= 2.34)
Depends: libgcc-s1 (>= 3.0)
Depends: libqt5core5t64 (>= 5.15.1)
|Depends: libqt5gui5t64 (>= 5.11.0~rc1)
Depends: libqt5gui5-gles (>= 5.11.0~rc1)
Depends: libqt5network5t64 (>= 5.9.0~beta)
Depends: libqt5qml5 (>= 5.1.0)
|Depends: libqt5quick5 (>= 5.9.0~beta)
Depends: libqt5quick5-gles (>= 5.9.0~beta)
Depends: libqt5quickcontrols2-5 (>= 5.12.2)
Depends: libqt5widgets5t64 (>= 5.0.2)
Depends: libstdc++6 (>= 5.2)
┌───────────────────>
│~
└─> apt depends cheese
cheese
Depends: libc6 (>= 2.34)
Depends: libcanberra-gtk3-0t64 (>= 0.26)
Depends: libcheese-gtk25 (= 44.1-1build4)
Depends: libcheese8 (= 44.1-1build4)
Depends: libclutter-1.0-0 (>= 1.16)
Depends: libclutter-gtk-1.0-0 (>= 0.91.8)
Depends: libgdk-pixbuf-2.0-0 (>= 2.25.2)
Depends: libglib2.0-0t64 (>= 2.79.0)
Depends: libgnome-desktop-3-20t64 (>= 3.17.92)
Depends: libgstreamer1.0-0 (>= 1.0.0)
Depends: libgtk-3-0t64 (>= 3.21.5)
Depends: cheese-common (>= 44.1-1build4)
Depends: gnome-video-effects
Recommends: gvfs
Recommends: yelp
Suggests: gnome-video-effects-frei0r

[corradoventu]

webcamoid is NOT== gnome-snapshot

[#&thj^%]

webcamoid is NOT== gnome-snapshot

I understand that:

snapshot
2024-04-18T16:38:57.810028Z INFO snapshot::application::imp: Snapshot (org.gnome.Snapshot)
2024-04-18T16:38:57.810145Z INFO snapshot::application::imp: Version: 46.2
2024-04-18T16:38:57.810150Z INFO snapshot::application::imp: Datadir: /usr/share/snapshot


I guess you are just bug-triaging and did not need an alternative. So shoot me for being helpful...LOL

[corradoventu]

as I said in my bug I have a great alternative in guvcview

[#&thj^%]

okie dokie you win...

NOI uomini italiani possiamo essere forti di mente

[Claus7]

Hello,


as I said in my bug I have a great alternative in guvcview

ditto.

Regards!

[jbicha]

I filed https://launchpad.net/bugs/2061687 for one particular issue with Snapshot with a link to the upstream bug/discussion and a simple workaround. We aren't yet sure how to fix the issue.

[corradoventu]

On my system camera works just adding video group to my user

[jbicha]

Right, but we're not going to do that for everyone.

There was another workaround in the upstream bug:


systemctl edit --user wireplumber.service

Add this then save the file and exit:


[Service]
ExecStartPre=/bin/sleep 1

(And if one second isn't long enough, you could try a larger number.)

The problem with that suggestion is remembering to undo it after the issue is fixed for everyone.

[Claus7]

Hello,


Right, but we're not going to do that for everyone.

There was another workaround in the upstream bug:


systemctl edit --user wireplumber.service

Add this then save the file and exit:


[Service]
ExecStartPre=/bin/sleep 1

(And if one second isn't long enough, you could try a larger number.)

The problem with that suggestion is remembering to undo it after the issue is fixed for everyone.

I issued the command. I added the text in question where it should be added. I pressed Ctlr+X and then Enter. It didn't fix the camera issue for me. In order to revert it I did the same thing except of deleting the aforementioned text.

Regards!

[jbicha]

Did you try larger numbers? Upstream suggested 5 instead of 1.

[Claus7]

Hello,


Did you try larger numbers? Upstream suggested 5 instead of 1.
it worked like a charm! (...with 5)

Regards!

[Claus7]

Hello,

I came across also this: systemctl --user restart pipewire
credits here: https://ubuntuforums.org/showthread.php?t=2497176

Regards!

[timatgca]

is there a bug report? I surely created a dup just now.

[corradoventu]

https://bugs.launchpad.net/ubuntu/+source/gnome-snapshot/+bug/2058131
https://bugs.launchpad.net/ubuntu/+source/gnome-snapshot/+bug/2060390

[timatgca]

thanks.
For me it is fixed in 24.04 after pipewire 1.0.5-1 AND adding my user to group video, exactly as you said.

[JcY47EP]

I had the same problem: "No camera found".
It was solved after adding myself in the video group, i.e.


sudo usermod -a -G video $USER

Note: You have to logout and then login again for the change to take effect.

[corradoventu]

This is an OLD WORKAROUND, the bug is still open.