From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baptiste Jonglez Subject: Re: [Dual-LVDS Acer Iconia laptop] i915/DRM issue: one screen stays off [3.2-rc4+] Date: Sun, 11 Dec 2011 17:30:37 +0100 Message-ID: <20111211163037.GA11920@archminux> References: <20111204160728.GA27292@archminux> <1323054041.6046.79.camel@linux-s257.site> <20111206215137.GA20907@archminux> <20111206223109.GA1867@archminux> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: platform-driver-x86-owner@vger.kernel.org To: Benjamin Tissoires Cc: joeyli , Baptiste Jonglez , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, platform-driver-x86@vger.kernel.org, linux-acpi@vger.kernel.org, Chris Wilson , intel-gfx@lists.freedesktop.org, Mathieu Magnaudet List-Id: linux-acpi@vger.kernel.org On Thu, Dec 08, 2011 at 11:11:22AM +0100, Benjamin Tissoires wrote: > Hi, > > On Tue, Dec 6, 2011 at 23:31, Baptiste Jonglez wrote: > > On Tue, Dec 06, 2011 at 11:12:26PM +0100, Benjamin Tissoires wrote: > >> Hi Baptiste, > > > > Hi, > > > >> On Tue, Dec 6, 2011 at 22:51, Baptiste Jonglez wrote: > >> > The second screen works fine with the attached patch. It actually is > >> > 6 months old but seems to have been lost in the wild... > >> > >> You don't have the problem of the second backlight still off? > >> On our Iconia, we need to trigger a special DMI command to set it up > >> (SDSS, IIRC). > > > > No, with the patch, it worked out-of-the-box. > > mmm, this is weird. We must not have the same bios or device version. > We need to explicitly set the LCD2 up. The version of our BIOS is 1.01, dated from 12/23/2010. Do you think there's any chance these patches will make it to the 3.2 kernel? I guess you want to make sure your second patch works fine before... Baptiste