Hi Felix What is the output of lsusb -v -d 0c45:6366 v4l2-ctl -d /dev/videoX --all (where videoX is the camera) yavta -c /dev/videoX Thanks! On Mon, Oct 18, 2021 at 6:48 PM Felix Schepmann <felix@xxxxxxxxxxxx> wrote: > > Hello, > > i am using a webcam with the following dmesg-output when inserting, > which is not showing any video signal: > > [ 405.386690] usb 3-1.2: USB disconnect, device number 4 > [ 411.018485] usb 3-1.1: USB disconnect, device number 3 > [ 414.105490] usb 3-1.1: new high-speed USB device number 7 using xhci_hcd > [ 414.285316] usb 3-1.1: New USB device found, idVendor=0c45, > idProduct=6366, bcdDevice= 1.00 > [ 414.285331] usb 3-1.1: New USB device strings: Mfr=2, Product=1, > SerialNumber=3 > [ 414.285338] usb 3-1.1: Product: USB 2.0 Camera > [ 414.285343] usb 3-1.1: Manufacturer: Sonix Technology Co., Ltd. > [ 414.285348] usb 3-1.1: SerialNumber: SN0001 > [ 414.288227] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (0c45:6366) > [ 414.315921] input: USB 2.0 Camera: USB Camera as > /devices/pci0000:00/0000:00:1c.4/0000:03:00.0/0000:04:02.0/0000:39:00.0/usb3/3-1/3-1.1/3-1.1:1.0/input/input52 > [ 414.365853] usb 3-1.1: 3:1: cannot get freq at ep 0x84 > [ 414.721869] usb 3-1.1: 3:1: cannot get freq at ep 0x84 > [ 414.791189] usb 3-1.1: 3:1: cannot get freq at ep 0x84 > > Maybe you could tell me what else of information I should show you? > > When I connect to this cam from e.g. firefox it's activity light turns > on, but no video-stream ist shown in my Web-conferencing screen. > > regards, Felix > > > -- Ricardo Ribalda