Thanks, ITwrx and George. It appears to be related to Thunar (XFCE), according to the logs below. Paul ---------------------------- Oct 12 18:33:54 new-host kernel: usb 1-8: USB disconnect, device number 26 Oct 12 18:33:54 new-host kernel: usb 1-8: new high-speed USB device number 27 using xhci_hcd Oct 12 18:33:54 new-host kernel: usb 1-8: New USB device found, idVendor=04ca, idProduct=707a, bcdDevice= 0.04 Oct 12 18:33:54 new-host kernel: usb 1-8: New USB device strings: Mfr=3, Product=1, SerialNumber=2 Oct 12 18:33:54 new-host kernel: usb 1-8: Product: EasyCamera 5M Oct 12 18:33:54 new-host kernel: usb 1-8: Manufacturer: Generic Oct 12 18:33:54 new-host kernel: [40B blob data] Oct 12 18:33:54 new-host kernel: uvcvideo: Found UVC 1.00 device EasyCamera 5M (04ca:707a) Oct 12 18:33:54 new-host kernel: uvcvideo: Failed to initialize entity for entity 6 Oct 12 18:33:54 new-host kernel: uvcvideo: Failed to register entities (-22). Oct 12 18:33:54 new-host kernel: input: EasyCamera 5M: EasyCamera 5M as /devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-8/1-8:1.0/input/input40 Oct 12 18:33:54 new-host kernel: hid-generic 0003:04CA:707A.001A: hiddev96,hidraw2: USB HID v1.11 Device [Generic EasyCamera 5M] on usb-0000:01:00.0-8/input2 Oct 12 18:33:54 new-host mtp-probe[32631]: checking bus 1, device 27: "/sys/devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-8" Oct 12 18:33:54 new-host mtp-probe[32631]: bus: 1, device: 27 was not an MTP device Oct 12 18:33:54 new-host lightdm[32644]: thunar-volman: Unsupported USB device type "usb". Oct 12 18:33:54 new-host mtp-probe[32660]: checking bus 1, device 27: "/sys/devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-8" Oct 12 18:33:54 new-host mtp-probe[32660]: bus: 1, device: 27 was not an MTP device Oct 12 18:33:54 new-host lightdm[32658]: thunar-volman: Unsupported input device type "(null)". Oct 12 18:33:54 new-host lightdm[32664]: thunar-volman: Unsupported input device type "/dev/input/event17". Oct 12 18:33:54 new-host lightdm[32668]: thunar-volman: Unsupported USB device type "usbhid". Oct 12 18:33:55 new-host lightdm[32672]: thunar-volman: Unsupported USB device type "uvcvideo". Oct 12 18:33:55 new-host lightdm[32676]: thunar-volman: Unsupported USB device type "uvcvideo". Oct 12 18:33:58 new-host kernel: usb 1-8: USB disconnect, device number 27 Oct 12 18:33:59 new-host kernel: usb 1-8: new high-speed USB device number 28 using xhci_hcd Oct 12 18:33:59 new-host kernel: usb 1-8: New USB device found, idVendor=04ca, idProduct=707a, bcdDevice= 0.04 Oct 12 18:33:59 new-host kernel: usb 1-8: New USB device strings: Mfr=3, Product=1, SerialNumber=2 Oct 12 18:33:59 new-host kernel: usb 1-8: Product: EasyCamera 5M Oct 12 18:33:59 new-host kernel: usb 1-8: Manufacturer: Generic Oct 12 18:33:59 new-host kernel: [40B blob data] Oct 12 18:33:59 new-host kernel: uvcvideo: Found UVC 1.00 device EasyCamera 5M (04ca:707a) Oct 12 18:33:59 new-host kernel: uvcvideo: Failed to initialize entity for entity 6 Oct 12 18:33:59 new-host kernel: uvcvideo: Failed to register entities (-22). Oct 12 18:33:59 new-host kernel: input: EasyCamera 5M: EasyCamera 5M as /devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-8/1-8:1.0/input/input41 Oct 12 18:33:59 new-host kernel: hid-generic 0003:04CA:707A.001B: hiddev96,hidraw2: USB HID v1.11 Device [Generic EasyCamera 5M] on usb-0000:01:00.0-8/input2 Oct 12 18:33:59 new-host mtp-probe[32687]: checking bus 1, device 28: "/sys/devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-8" Oct 12 18:33:59 new-host mtp-probe[32687]: bus: 1, device: 28 was not an MTP device Oct 12 18:33:59 new-host lightdm[32700]: thunar-volman: Unsupported USB device type "usb". Oct 12 18:33:59 new-host mtp-probe[32713]: checking bus 1, device 28: "/sys/devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-8" Oct 12 18:33:59 new-host mtp-probe[32713]: bus: 1, device: 28 was not an MTP device Oct 12 18:33:59 new-host lightdm[32711]: thunar-volman: Unsupported input device type "(null)". Oct 12 18:33:59 new-host lightdm[32717]: thunar-volman: Unsupported input device type "/dev/input/event17". Oct 12 18:33:59 new-host lightdm[32721]: thunar-volman: Unsupported USB device type "uvcvideo". Oct 12 18:33:59 new-host lightdm[32725]: thunar-volman: Unsupported USB device type "uvcvideo". Oct 12 18:33:59 new-host lightdm[32729]: thunar-volman: Unsupported USB device type "usbhid". On Mon, Oct 12, 2020 at 5:10 PM ITwrx <info@xxxxxxxxx> wrote: > > On 10/12/20 10:01 AM, Paul Smith wrote: > > Dear All, > > > > I have a web camera, which has worked perfectly on Fedora 32. However, > > recently, it only works intermittently on Skype. Intriguily, if I plug > > it into a different USB port, the web camera works with no problem. > > Any ideas? > > > > Thanks in advance, > > > > Paul > > _______________________________________________ > > Paul, > > i would check the log via "journalctl -b -0" or similar [1], and use a > search engine to learn about what you're seeing and narrow things down. > It should show software issues that might be effecting the cam. It will > show if the usb is having connection issues. Like some hardware > failures, bad usb cable, etc. I've seen this happen with usb printers. I > replaced the cable or used a different port (damaged port) and it was > fine again. > > The first step on many things, is to check the log. Yes, it's low level, > and can be tedious, but unless you're paying for a support contract > somewhere, or paid for commercial software, it's really part of your > (read "our") due diligence, IMHO. > > If you've done what you can do, and have some specific things you can't > figure out, post back and someone might be able to help with that. > > Please note, that i'm not trying to act as an authority figure with > these suggestions, and you're free to scoff at me and post whatever you > want. :) Also, I'm just another user like you, and don't speak for > Fedora. They are only friendly recommendations, as some list subscribers > may be tempted to ignore questions when the preliminary steps have not > been attempted, and i thought it more helpful to explain all this instead. > > 1: https://docs.fedoraproject.org/en-US/quick-docs/viewing-logs/ > > thanks, > > ITwrx > _______________________________________________ > users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
