https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288729

            Bug ID: 288729
           Summary: drm or amdgpu or xorg -- missing screen updates
           Product: Base System
           Version: 14.3-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: [email protected]
          Reporter: [email protected]

Created attachment 262803
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=262803&action=edit
dmesg

uname -a
FreeBSD dads_pc.int.clt.procacci.family 14.3-STABLE FreeBSD 14.3-STABLE
stable/14-n272137-627831eba3de GENERIC amd64

Fresh 14 stable.  Fresh xorg/amdgpu/etc.

Typing in an xterm sometimes results in characters not being drawn to the
terminal immediately and instead only show after another windowing event
occurs, such as moving the mouse, typing one or sometimes more characters,
moving the window, etc.  This isn't limited to xterm, but I also tried with
urxvt.

This problem also presents itself with the mouse where it will periodically
stop moving only to "catch up" and move to where it should be.

Funnily enough, this input "lag" at least in regards to the keyboard doesn't
occur on a firefox text area, like the one I'm typing out this report on. 
Characters typed are presented immediately.

I've taken a video to provide an example:
https://drive.google.com/file/d/1Q7PCjlfz_CPhGgKOzmNnbr8ct6ZZEodV/view?usp=sharing

I'm not sure what else I can provide.  Just ask!

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