Created attachment 1897580 [details] dmsg.txt as requested. 1. Please describe the problem: Connect a Mobius camera to the F36 computer via USB. $ vlc v4l2:///dev/video0 VLC media player 3.0.17.4 Vetinari (revision ) It works properly, ie image shows on VLC. After a 10 seconds or so, this error appears over and over on the command line. [00007f9cbc001130] v4l2 demux error: dequeue error: No such device [00007f9cbc001130] v4l2 demux error: dequeue error: No such device [00007f9cbc001130] v4l2 demux error: dequeue error: No such device [00007f9cbc001130] v4l2 demux error: dequeue error: No such device [00007f9cbc001130] v4l2 demux error: dequeue error: No such device [00007f9cbc001130] v4l2 demux error: dequeue error: No such device 2. What is the Version-Release number of the kernel: $ uname -a Linux workstation1 5.18.11-200.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Tue Jul 12 22:52:35 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux 3. Did it work previously in Fedora? If so, what kernel version did the issue *first* appear? Old kernels are available for download at https://koji.fedoraproject.org/koji/packageinfo?packageID=8 : Yes, it worked with a F34? kernels throughout the summer of 2021. 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: It reproduces every time. The camera and USB cable work fine in Windows 10. 5. Does this problem occur with the latest Rawhide kernel? To install the Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by ``sudo dnf update --enablerepo=rawhide kernel``: I'll test this and reply back. 6. Are you running any modules that not shipped with directly Fedora's kernel?: No. 7. Please attach the kernel logs. You can get the complete kernel log for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the issue occurred on a previous boot, use the journalctl ``-b`` flag.
I tested with the latest rawhide kernel. Same behaviour. $ uname -a Linux workstation1 5.19.0-0.rc6.20220714git4a57a8400075.49.fc37.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Jul 14 14:13:57 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Retested with kernel 5.19 for Kernel 5.19 Test Week. $ uname -a Linux workstation1 5.19.2-300.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Aug 17 15:09:56 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux Same problem.
Tested with 6.0-rc1. Same problem. $ uname -a Linux workstation1 6.0.0-rc1 #2 SMP PREEMPT_DYNAMIC Thu Aug 18 19:13:13 MDT 2022 x86_64 x86_64 x86_64 GNU/Linux
FWIW, the camera works properly in Windows 10.
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