i don't think this is solved. my monitor webcam was working fine in April/May. i use no special drivers, it is a desktop monitor with effectively a USB hub and webcam built in (so using the standard plug and play UVCVIDEO drivers). It has now stopped working.
Doesnt show up in Cheese or in Guvcview. if i run dmesg i get: [ 7116.802582] usb 2-5.1: Product: Monitor Webcam [ 7116.802586] usb 2-5.1: Manufacturer: OmniVision Technologies, Inc.538-2640-09.07.24.1 [ 7116.804179] uvcvideo: Found UVC 1.00 device Monitor Webcam (05a9:2649) [ 7116.805930] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. [ 7116.806302] uvcvideo: Failed to query (129) UVC probe control : -32 (exp. 26). [ 7116.806306] uvcvideo: Failed to initialize the device (-5). physically unplugging and replugging its usb doesnt help. neither does rmmod uvcvideo and modprobe uvcvideo. Weirdly, unplugging from my desktop's own USB slots - which are usb 2 (EHCI) - and moving the monitor usb cable to an empty usb 3.0 (xHCI) slot fixed the issue! So i am back in business, but i believe whatever issue keeps popping up (for different webcams every few kernel releases), is still there... -- 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
