On Thu, 31 Dec 2020 21:48:33 +0100 Eugen Dedu <eugen.d...@univ-fcomte.fr> wrote:
> Hi Celejar, > > To find out the capabilities of your camera, you can install v4l-utils > and execute: > v4l2-ctl --list-devices > v4l2-ctl -d /dev/video0 --list-formats > v4l2-ctl -d /dev/video0 --list-formats-ext > Check also the other /dev/video* files. > > Another method is to use qv4l2 (provided by the homonym package), which > is very user-friendly and I think it uses v4l2-ctl to find information. Thanks. I used the lsusb method described here: https://askubuntu.com/questions/214977/how-can-i-find-out-the-supported-webcam-resolutions > The above information comes from > https://wiki.archlinux.org/index.php/webcam_setup. > > Cheese and vlc must not be used to find out available resolutions. On > my Dell built-in webcam both show 640x480 and below, whereas my camera > supports 1280x720, as given by the laptop specification and > v4l2-ctl/qv4l2. As about why do these applications use this resolution, > I do not have any idea. Interesting. On my machine, Cheese does seem to correctly list the available resolutions. Thanks again, Celejar