[Bug 261751] vt newcons mouse pointer background display bug

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 06 Feb 2022 17:21:46 UTC

            Bug ID: 261751
           Summary: vt newcons mouse pointer background display bug
           Product: Base System
           Version: Unspecified
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: sblachmann@gmail.com

How to reproduce:

1. Configure system to use vt newcons.
2. Run any application that uses dialog(1).
3. Move the mouse cursor onto the blue background area of the dialog(1) screen.

You'll observe that the character boxes under the mouse cursor are no longer
blue, but _red_.

Looks strange and rather buggy.
This happens on all graphics cards on which I tested vt.
It can be observed _only_ when using vt newcons.

On sc console or X terminal emulators the mouse cursor background looks
perfectly normal.

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