[Bug 296520] usb/uvideo: glitchy / distorted webcam output using uvideo, but not using webcamd

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=296520

            Bug ID: 296520
           Summary: usb/uvideo: glitchy / distorted webcam output using
                    uvideo, but not using webcamd
           Product: Base System
           Version: 16.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: adrian@freebsd.org

Created attachment 272490
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=272490&action=edit
uvideo0 kernel dmesg

I have an old lenovo t420 that just got a -HEAD install. The webcam doesn't
work right under uvideo - it's glitchy at higher resolutions and lower
resolutions it looks like the pixel config / row config is just plain wrong.

Flipping back to webcamd worked fine.

I've attached the relevant hardware info.

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