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Date:      Mon, 01 Jan 2018 18:00:01 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 224825] Screen corruption booting 20171227 snapshot
Message-ID:  <bug-224825-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224825

            Bug ID: 224825
           Summary: Screen corruption booting 20171227 snapshot
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: misc
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: mason@blisses.org

Created attachment 189321
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D189321&action=
=3Dedit
Screenshot

My hardware: Thinkpad T420, UEFI mode, Intel-only graphics.

Booting the 20171227 snapshot of -current, the screen's unusable. The boot =
menu
comes up occupying a smaller fraction of the screen than normal, and then a
mode switch happens and the screen becomes garbled and unusable.

By contrast, the 20171220 snapshot doesn't exhibit this behaviour.

mizhka thinks this might be his commit r327058. If it helps, I'm happy to t=
est
potential fixes on this machine, as it's largely a test platform anyway.

Attached are two screenshots and a short video showing the corruption.

--=20
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