Snapshot No Camera Found

[corrado venturini]

Start snapshot, I see just a black window with a message: "No camera found"
see attachment
Note guvcview works fine with this camera

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: gnome-snapshot 46.0-1ubuntu2
ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1
Uname: Linux 6.8.0-22-generic x86_64
ApportVersion: 2.28.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 7 17:29:25 2024
ExecutablePath: /usr/bin/snapshot
InstallationDate: Installed on 2024-04-07 (0 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240407.2)
ProcEnviron:
 LANG=C.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: gnome-snapshot
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

Thank you for the bug report. Is that the same issue than bug #2058131?

could you get the output of

$ pw-dump | grep default.video.source

and

$ gst-device-monitor-1.0 Video/Source

?

[corrado venturini (corradoventu)]

Yes, same issue, but gnome-snapshot changed from gnome-snapshot 45.2+vendored-0ubuntu1 to gnome-snapshot 46.0-1ubuntu2.
corrado@corrado-n9-nn-0410:~$ pw-dump | grep default.video.source
corrado@corrado-n9-nn-0410:~$ gst-device-monitor-1.0 Video/Source
Probing devices...

[0:18:56.648040228] [8447] WARN IPAManager ipa_manager.cpp:154 No IPA found in '/usr/lib/x86_64-linux-gnu/libcamera'
[0:18:56.648141537] [8447] INFO Camera camera_manager.cpp:284 libcamera v0.2.0

Device found:

 name : \_SB_.PC00.XHCI.RHUB.HS05-5:1.2-046d:082c
 class : Source/Video
 caps : image/jpeg, width=160, height=120
         image/jpeg, width=176, height=144
         image/jpeg, width=320, height=240
         image/jpeg, width=352, height=288
         image/jpeg, width=432, height=240
         image/jpeg, width=640, height=360
         image/jpeg, width=640, height=480
         image/jpeg, width=800, height=448
         image/jpeg, width=864, height=480
         image/jpeg, width=800, height=600
         image/jpeg, width=1024, height=576
         image/jpeg, width=960, height=720
         image/jpeg, width=1280, height=720
         image/jpeg, width=1600, height=896
         image/jpeg, width=1920, height=1080
         video/x-raw, format=YUY2, width=160, height=120
         video/x-raw, format=YUY2, width=176, height=144
         video/x-raw, format=YUY2, width=320, height=240
         video/x-raw, format=YUY2, width=352, height=288
         video/x-raw, format=YUY2, width=432, height=240
         video/x-raw, format=YUY2, width=640, height=360
         video/x-raw, format=YUY2, width=640, height=480
         video/x-raw, format=YUY2, width=800, height=448
         video/x-raw, format=YUY2, width=864, height=480
         video/x-raw, format=YUY2, width=800, height=600
         video/x-raw, format=YUY2, width=1024, height=576
         video/x-raw, format=YUY2, width=960, height=720
         video/x-raw, format=YUY2, width=1280, height=720
         video/x-raw, format=YUY2, width=1600, height=896
         video/x-raw, format=YUY2, width=1920, height=1080
 gst-launch-1.0 libcamerasrc camera-name="\\_SB_.PC00.XHCI.RHUB.HS05-5:1.2-046d:082c" ! ...

corrado@corrado-n9-nn-0410:~$

[Sebastien Bacher (seb128)]

Thanks, that's probably similar to that report Jeremy made upstream, https://gitlab.gnome.org/GNOME/snapshot/-/issues/159

[lotuspsychje (lotuspsychje)]

 installing pipewire-libcamera as adviced upstream + reboot did not solve the issue for me

[corrado venturini (corradoventu)]

On Ubuntu 24.04 snap-store for 'camera' proposes a different package:
https://forum.snapcraft.io/t/snap-store-proposed-camera-or-gnome-snapshot/39727

The proposed app is 'pinhole' installed with name camera .... very confusing!!!

[corrado venturini (corradoventu)]

still same problem with version 46.2

[corrado venturini (corradoventu)]

Also adding video group has no effect but the message is no longer "No camera found" but "Could not play camera stream"
corrado@corrado-n5-nn-0414:~$ groups
corrado adm cdrom sudo dip video plugdev users lpadmin
corrado@corrado-n5-nn-0414:~$ snapshot
2024-04-16T06:26:44.996773Z INFO snapshot::application::imp: Snapshot (org.gnome.Snapshot)
2024-04-16T06:26:44.996784Z INFO snapshot::application::imp: Version: 46.2
2024-04-16T06:26:44.996786Z INFO snapshot::application::imp: Datadir: /usr/share/snapshot
2024-04-16T06:26:45.591332Z ERROR aperture::viewfinder: Could not start camerabin: Element failed to change its state
2024-04-16T06:26:45.594009Z ERROR aperture::viewfinder: Could not start camerabin: Element failed to change its state
2024-04-16T06:26:45.594486Z ERROR aperture::viewfinder: Bus Error from Some("/GstCameraBin:camerabin0/GstWrapperCameraBinSrc:camerasrc/GstAutoVideoSrc:camerasrc-real-src/GstPipeWireSrc:camerasrc-real-src-actual-src-pipewir")
stream error: error output enum formats: Invalid argument
Some("../src/gst/gstpipewiresrc.c(689): on_state_changed (): /GstCameraBin:camerabin0/GstWrapperCameraBinSrc:camerasrc/GstAutoVideoSrc:camerasrc-real-src/GstPipeWireSrc:camerasrc-real-src-actual-src-pipewir")
2024-04-16T06:26:45.594514Z ERROR aperture::viewfinder: Bus Error from Some("/GstCameraBin:camerabin0/GstWrapperCameraBinSrc:camerasrc/GstAutoVideoSrc:camerasrc-real-src/GstPipeWireSrc:camerasrc-real-src-actual-src-pipewir")
Internal data stream error.
Some("../libs/gst/base/gstbasesrc.c(3175): gst_base_src_loop (): /GstCameraBin:camerabin0/GstWrapperCameraBinSrc:camerasrc/GstAutoVideoSrc:camerasrc-real-src/GstPipeWireSrc:camerasrc-real-src-actual-src-pipewir:\nstreaming stopped, reason not-negotiated (-4)")

[Sebastien Bacher (seb128)]

@corrado, any chance you could report your issue on https://gitlab.freedesktop.org/pipewire/pipewire/-/issues ?

[corrado venturini (corradoventu)]

ok, done, let me know if additional info is needed,
Corrado Venturini

Il giorno mar 16 apr 2024 alle ore 12:25 Sebastien Bacher <
<email address hidden>> ha scritto:

> @corrado, any chance you could report your issue on
> https://gitlab.freedesktop.org/pipewire/pipewire/-/issues ?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/2060390
>
> Title:
> Snapshot No Camera Found
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/pipewire/+bug/2060390/+subscriptions
>
>

[corrado venturini (corradoventu)]

After install pipewire 1.0.5-1 from proposed and reboot gnome-snapshot WORKS FINE!
Thanks a lot

[corrado venturini (corradoventu)]

On install from Ubuntu 24.04 LTS "Noble Numbat" - Beta amd64 (20240420) camera starts only after connecting to group video