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Date:      Sat, 21 Nov 2015 12:53:35 +0100
From:      =?UTF-8?Q?Jean-S=c3=a9bastien_P=c3=a9dron?= <jean-sebastien.pedron@dumbbell.fr>
To:        freebsd-current@freebsd.org
Subject:   Re: EFI and i915kms questions
Message-ID:  <56505B3F.2070403@dumbbell.fr>
In-Reply-To: <54B18FFE-063F-4F62-9343-28FDE68EE358@pcbsd.org>
References:  <54B18FFE-063F-4F62-9343-28FDE68EE358@pcbsd.org>

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On 13/11/2015 18:15, Joe Maloney wrote:
> Hello,

Hi!

> Sometime after changes in FreeBSD 10-STABLE, 10.2 onwards, and=20
> recent 11 CURRENT the resolution no longer sets properly when using
> UEFI boot. It now boots with a 640x480 resolution, and kldload
> i915kms results in a black screen. I have not been able to grab a
> debug log, or crash dump even with all of the debugging features
> turned on. I cannot ssh into the laptop when this panic occurs, and
> the screen is black so I can=E2=80=99t really see what happened. I=E2=80=
=99m curious
> if there is anything else I can do besides enabling dumpdev or
> kldload -v i915kms > output.txt that doesn=E2=80=99t give me any detail=
=2E
> Nothing shows up in /var/crash or whatever the directory was.

You could try to set debug.debugger_on_panic=3D0 in /etc/sysctl.conf. It
often helps to at least get core dumps when the crash happens in a video
driver.

--=20
Jean-S=C3=A9bastien P=C3=A9dron


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