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Date:      Sun, 30 Aug 2015 03:23:51 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 202309] [uefi] smashed screen on HP Probook 430 G1 with UEFI
Message-ID:  <bug-202309-8-YaRfC3nLXu@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-202309-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-202309-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202309

Oliver Pinter <op@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Ray"@FreeBSD.org,
                   |                            |dumbbell@FreeBSD.org,
                   |                            |marcel@FreeBSD.org
           See Also|                            |https://bugs.freebsd.org/bu
                   |                            |gzilla/show_bug.cgi?id=1940
                   |                            |63
                 CC|Ray"@FreeBSD.org            |ray@FreeBSD.org

Marcel Moolenaar <marcel@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|New                         |Open
                 CC|ray@FreeBSD.org             |
           Assignee|freebsd-bugs@FreeBSD.org    |marcel@FreeBSD.org

--- Comment #1 from Marcel Moolenaar <marcel@FreeBSD.org> ---
If I can read the screen correctly, it looks like the resolution is 1366x768,
with a stride of 1366 and a color depth of 32 bits per pixel (or 4 bytes per
pixel).

The console output seems to be using a stride that's just wrong. Since the
stride is coming from UEFI, it's hard to think of a reason why the kernel would
do this.

Have you tried updating the firmware?

--- Comment #2 from Oliver Pinter <op@freebsd.org> ---
Yes, today I updated to latest bios from HP, but the issue still exists.

How could I extract these information without serial port or change the
settings in loader or kernel?

--- Comment #3 from Marcel Moolenaar <marcel@FreeBSD.org> ---
Created attachment 160509
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=160509&action=edit
loader with 'gop' command

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