From owner-freebsd-current@FreeBSD.ORG  Thu Jan 29 19:18:48 2015
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 991CC3E0
 for <freebsd-current@freebsd.org>; Thu, 29 Jan 2015 19:18:48 +0000 (UTC)
Received: from mail-ie0-x230.google.com (mail-ie0-x230.google.com
 [IPv6:2607:f8b0:4001:c03::230])
 (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 36344A60
 for <freebsd-current@freebsd.org>; Thu, 29 Jan 2015 19:18:48 +0000 (UTC)
Received: by mail-ie0-f176.google.com with SMTP id rd18so37525622iec.7
 for <freebsd-current@freebsd.org>; Thu, 29 Jan 2015 11:18:46 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:in-reply-to:references:date:message-id:subject:from:to
 :cc:content-type;
 bh=qdzSQQW5/Xlffk5aqklerQkYXbJoovqNSNXmkH0tvBo=;
 b=JVTimz3FyzigHS9FK9l+eC4A8JaLKvqHLQeEkN0ZA1skk/Vb3aSSwSpKn8owTGp/Cg
 I6BhqBFqKQ9XdVy4LLFQ6nV89yX8qpK+Ts3YUyxGw6KckP9MLdMV5pKjvt7m7fA4d8+i
 Sw3wg9+BAgOTT3SqlFXBv68uJJSk3vqKfcQbseR0Dy2adlQMre035fipu15gsvzIUftM
 zDzFM5byaAp7GT3bAbI1rb+21sRlyERss7ul9w2sYRfpbHBsAJWKuvOsluWaZit48sM5
 r7Xh5K+vr5bNJM6JKmLp7liXczqWN7cWP/BvKwVEbFD8kmqqLDDjqhuQDERxuqTKbqJU
 6N9w==
MIME-Version: 1.0
X-Received: by 10.107.15.138 with SMTP id 10mr2665641iop.57.1422559126594;
 Thu, 29 Jan 2015 11:18:46 -0800 (PST)
Received: by 10.50.182.233 with HTTP; Thu, 29 Jan 2015 11:18:46 -0800 (PST)
In-Reply-To: <20150129195230.5dd7078f.ohartman@zedat.fu-berlin.de>
References: <20150129195230.5dd7078f.ohartman@zedat.fu-berlin.de>
Date: Thu, 29 Jan 2015 11:18:46 -0800
Message-ID: <CAGHfRMCQ12MNeg+opc_-RkrUHwMimB29rUPHQ5nP9YAR7DTOtg@mail.gmail.com>
Subject: Re: i915kms.ko: when loaded with Haswell HD4600, display goes blank
From: NGie Cooper <yaneurabeya@gmail.com>
To: "O. Hartmann" <ohartman@zedat.fu-berlin.de>
Content-Type: text/plain; charset=UTF-8
Cc: FreeBSD CURRENT <freebsd-current@freebsd.org>
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current/>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 29 Jan 2015 19:18:48 -0000

On Thu, Jan 29, 2015 at 10:52 AM, O. Hartmann
<ohartman@zedat.fu-berlin.de> wrote:
>
> Having trouble with loading i915kms.ko on a Haswell-based Lenovo ThinkPad E540. The
> laptop is equippted with a Intel i5-4200M CPU with integrated HD4600 iGPU. Recent update
> of CURRENT and loading of i915kms.ko turns the display immediately blank. Laptop is
> accessible via ssh and network. Only display is dead.
>
> I suppose this a bug?

Yes, very much so. What's your svn revision and can you please create
a bug for this issue?