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Date:      Mon, 18 Jan 2016 02:21:26 +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-DchbY6pWRq@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=3D202309

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=3D1=
940
                   |                            |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
             Status|Open                        |In Progress

Douglas King <douglasking215@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |douglasking215@gmail.com

Ed Maste <emaste@freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |emaste@freebsd.org

Marcel Moolenaar <marcel@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|marcel@FreeBSD.org          |freebsd-bugs@FreeBSD.org

--- Comment #1 from Marcel Moolenaar <marcel@FreeBSD.org> ---
If I can read the screen correctly, it looks like the resolution is 1366x76=
8,
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 w=
ould
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=3D160509&action=
=3Dedit
loader with 'gop' command

--- Comment #4 from Marcel Moolenaar <marcel@FreeBSD.org> ---
(In reply to Oliver Pinter from comment #2)

I committed revision 287299 (-current), that adds a 'gop' command to the
loader. I attached a pre-compiled EFI loader with this command to this PR.

Can you run 'gop get' and 'gop list' and add the output to this PR?

Also: can you try different modes (if possible) and see if that makes a
difference?

--- Comment #5 from Douglas King <douglasking215@gmail.com> ---
Created attachment 162834
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D162834&action=
=3Dedit
BIOS information

dmidecode output

--- Comment #6 from Douglas King <douglasking215@gmail.com> ---
Created attachment 162835
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D162835&action=
=3Dedit
Dmidecode output

--- Comment #7 from Douglas King <douglasking215@gmail.com> ---
I am having the same issue trying to install on an HP Elitebook 2540p.
The error happens at the same point shown in the video except the whole out=
put
is "squished" in the top 5-10% of the disply.
The display changes with user interaction but none of it is viewable.
The text from the boot process remains unaffected.=20
Booting without EFI freezes slightly earlier in the boot.

'gop' only has one mode listed.

--=20
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