From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Lukas Subject: External display Date: Fri, 14 Jan 2011 13:38:08 +0100 Message-ID: <1295008688.2327.43.camel@hoss.staad.pingworks.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mailout-de.gmx.net (mailout-de.gmx.net [213.165.64.22]) by gabe.freedesktop.org (Postfix) with SMTP id 227E29E7DD for ; Fri, 14 Jan 2011 04:38:10 -0800 (PST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org Hi, I am using a Dell E6410 notebook running Ubuntu. Most of the time I am running this notebook in a docking station with closed lid and with an external (DVI) monitor attached to the dock. Running different kernels I see different behaviour regarding the display configuration after boot. Booting a 2.6.32 based kernel the internal display is turned off, the external display is turned on and running at it's native resolution of 1920x1200. This is what I would expect. Booting the same system with a drm-intel-next based kernel the internal display is turned on (although the lid is closed), the external display is on and shows a resolution of 1024x768. Logging into X the internal display stays on, the external display changes resolution to 1920x1200. I can use gnome-display-properties to turn the internal screen off. But after each DPMS blanking the internal display is turned on again. :( Is this some expected behaviour or should this be considered a bug? Thanks in advance. Regards, Christoph