Comment # 4 on bug 1174625 from
The option should be OK, and you should be able to see the actual parameter
state in /sys/module/uvcvideo/parameters/trace.

But, comparing with both outputs, it seems that USB-audio driver takes over the
USB entries that should have been used for uvcvideo.

Could you try to boot with blacklisting snd-usb-audio once and see whether
uvcvideo on 5.7.9 works?  It's no solution, of course, but to check the cause.

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