On 5/13/23 22:31, Andreas Fink wrote:
On Sat, 13 May 2023 14:50:33 -0600 the...@sys-concept.com wrote:Getting an error message when trying to start usb-cam: guvcview ENCODER: no video codec detected for VP9 (VP9) ENCODER: no video codec detected for Theora (ogg theora) GUVCVIEW: version 2.0.8 GUVCVIEW: couldn't open /home/joseph/.config/guvcview2/video0 for read: No such file or directory V4L2_CORE: ERROR opening V4L interface: No such file or directory GUVCVIEW (2): Guvcview error no video device (/dev/video0) found GUVCVIEW (Qt5): fatal error (0 devices detected) GUVCVIEW (Qt5): creating error dialog dmesg: [935066.984348] usb 1-1.4: Product: Vega USB2.0 Camera [935066.984350] usb 1-1.4: Manufacturer: Vimicro Corp. [936075.049430] usb 1-1.4: USB disconnect, device number 47 [936080.312412] usb 1-1.4: new high-speed USB device number 48 using xhci_hcd [936080.504291] usb 1-1.4: New USB device found, idVendor=0ac8, idProduct=0331, bcdDevice= 1.00 [936080.504296] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [936080.504297] usb 1-1.4: Product: Vega USB2.0 Camera [936080.504299] usb 1-1.4: Manufacturer: Vimicro Corp.Do you have read/write access to /dev/video0? Try with: ls -lh /dev/video*
No, it wasn't the case. I had to add support for V4L in the kernel. I'm surprised that there was no emerge note after emerging the package, that package needs V4L support in the kernel.
