The bug seems to be unbeatable. Still happening on Ubuntu 22.04 LTS on a Samsung NP550XDAE laptop. I'm using an integrated camera:
$ lsmod | grep uvcvideo uvcvideo 106496 2 videobuf2_vmalloc 20480 1 uvcvideo videobuf2_v4l2 32768 1 uvcvideo videobuf2_common 77824 4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops videodev 258048 5 videobuf2_v4l2,uvcvideo,videobuf2_common mc 65536 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common $ lsusb |grep -i camera Bus 003 Device 003: ID 05c8:023a Cheng Uei Precision Industry Co., Ltd (Foxlink) VGA Camera -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/386799 Title: Restart required for webcam to work; how to manually restart? Status in linux package in Ubuntu: Won't Fix Bug description: http://ubuntuforums.org/showthread.php?p=7451356#post7451356 shows another user with the same problem. I have a lapto HP pavillion Linux patricio-laptop 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux From the kern.log: /var/log/kern.log:Jun 13 15:20:31 patricio-laptop kernel: [29606.529587] uvcvideo 2-4:1.1: resume error -5 /var/log/kern.log:Jun 13 15:26:01 patricio-laptop kernel: [29937.049414] uvcvideo: Failed to query (135) UVC control 2 (unit 3) : -71 (exp. 2). /var/log/kern.log:Jun 13 15:32:04 patricio-laptop kernel: [30300.054961] uvcvideo: Failed to query (135) UVC control 2 (unit 3) : -71 (exp. 2). lsusb Bus 002 Device 002: ID 04f2:b015 Chicony Electronics Co., Ltd VGA 24fps UVC Webcam To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/386799/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
