What is the problem?
I changed the config file to "USB" camera, and added resolution settings for 1920x1080 and 15fps.
On the 'control' page, the camera still shows up fairly low quality, and it's a 4:3 aspect ratio instead of filling the full widescreen.
What did you already try to solve it?
Changed the config file, that's all I knew to try.
Edit: In the octoprint webcam page, there's a setting to swap between 4:3 and 16:9, but it's already on 16:9. I toggled it just in case, but no effect.
Logs (/var/log/webcamd.log, syslog, dmesg, ... no logs, no support)
No logs, because... I mean what log would help with this?
Additional information about your setup (OctoPrint version, OctoPi version, ...)
Current version of Octoprint (1.3.12, far as I know). Pi 3b+.
Have you fix your issue ?
I also has the same problem.
I edited /boot/octopi.txt but resolution still the same.
I am using Pi4 2GB with Logitech C920, OctoPrint version 1.4.0
I found the root cause of my webcam issue.
It is cause by The Spaghetti Detective plugin.
Problem gone once check the 'Disable premium webcam streaming' setting inside The Spaghetti Detective plugin 'Advanced Setting tab'.