I think this seems similar to what's happening to me with kernel version 5.4.0-91-generic. here is my dmesg output:
dmesg | grep -i -e camera -e uvcvideo -e "usb 1-12" [ 2.274981] usb 1-12: new high-speed USB device number 5 using xhci_hcd [ 2.436692] usb 1-12: New USB device found, idVendor=0c45, idProduct=6365, bcdDevice= 0.00 [ 2.436693] usb 1-12: New USB device strings: Mfr=2, Product=1, SerialNumber=0 [ 2.436694] usb 1-12: Product: USB 2.0 Camera [ 2.436695] usb 1-12: Manufacturer: Sonix Technology Co., Ltd. [ 3.218112] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (0c45:6365) [ 3.218817] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. [ 3.219327] uvcvideo: Failed to query (129) UVC probe control : -32 (exp. 26). [ 3.219329] uvcvideo: Failed to initialize the device (-5). [ 3.219381] usbcore: registered new interface driver uvcvideo [ 1654.404017] usbcore: deregistering interface driver uvcvideo [ 1654.655370] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (0c45:6365) [ 1654.656064] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. [ 1654.656508] uvcvideo: Failed to query (129) UVC probe control : -32 (exp. 26). [ 1654.656511] uvcvideo: Failed to initialize the device (-5). [ 1654.656575] usbcore: registered new interface driver uvcvideo cross-posted in https://askubuntu.com/questions/1378362/what-can-cause-my-dev-video-to-get-deleted-disabling-my-camera-and-how-do-i -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed in Ubuntu. https://bugs.launchpad.net/bugs/1881757 Title: webcam is detected but not working with kernel 5.4.0.33 Status in linux-signed package in Ubuntu: Fix Released Bug description: webcam is detected not working under kernel 5.4.0.33 and 5.4.0.31 . The webcam is functional with kernels 5.0 and 5.6.15 . -usb:1 description: Video product: USB 2.0 Web Camera vendor: Alcor Micro, Corp. physical id: 2 bus info: usb@1:1.2 version: 0.08 capabilities: usb-2.00 configuration: driver=uvcvideo maxpower=200mA speed=480Mbit/s susb; lsb_release -a; uname -a Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 1d0b:0021 HAN HUA CABLE & WIRE TECHNOLOGY (J.X.) CO., LTD. Bus 001 Device 003: ID 058f:5608 Alcor Micro Corp. Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04 LTS Release: 20.04 Codename: focal Linux afsal-Excelance 5.4.0-33-generic #37-Ubuntu SMP Thu May 21 12:53:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux more info : https://answers.launchpad.net/ubuntu/+question/691070 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1881757/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
