From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?iso-8859-1?q?Hans-J=FCrgen_Koch?= Subject: Matrox G550, dual head, 1680x1050 Date: Fri, 2 Mar 2007 00:25:12 +0100 Message-ID: <200703020025.13174.hjk@linutronix.de> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1HMueE-0002dJ-KS for linux-fbdev-devel@lists.sourceforge.net; Thu, 01 Mar 2007 15:25:18 -0800 Received: from www.osadl.org ([213.239.205.134] helo=mail.tglx.de) by mail.sourceforge.net with esmtp (Exim 4.44) id 1HMueD-0007S2-Vv for linux-fbdev-devel@lists.sourceforge.net; Thu, 01 Mar 2007 15:25:18 -0800 Received: from hanslin.local.208.168.192.in-addr.arpa (HSI-KBW-085-216-099-221.hsi.kabelbw.de [85.216.99.221]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.tglx.de (Postfix) with ESMTP id B180065C3D9 for ; Fri, 2 Mar 2007 00:25:14 +0100 (CET) Content-Disposition: inline List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: linux-fbdev-devel@lists.sourceforge.net Hi, I'm the proud owner of two NEC MultiSync 2070WNX monitors (1680x1050) and a Matrox G550 dual DVI card. I'm now trying to set up a dual head configuration with this equipment. I'm booting with video=matroxfb:vesa:0x1BB, as there is no 1680x1050 vesa mode. This works, both monitors show the same and complain about the wrong resolution. Now I start my X server (xorg.conf below) and wish to get a xinerama setup. Monitor 1 switches to 1680x1050 and shows a nice clean screen. Monitor 2 seems to have problems, though. I guess the card still outputs the 1280x1024 set up at boot time. Colours are correct, but the image is heavily distorted. It looks like the X server thinks it's 1680x1050 but in fact it's still 1280x1024. I spent some time googling, but to no avail. Now my questions: Is this a known limitation of matroxfb? If yes, is it considered a bug? I could spend some time looking into the code. Do I have any chance to get this working in a reasonable dual head configuration? Any hints? TIA, Hans Here's my xorg.conf: # /etc/X11/xorg.conf (xorg X Window System server configuration file) Section "Files" FontPath "unix/:7100" # local font server FontPath "unix/:7101" # local ttf-font server # path to defoma fonts FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" EndSection Section "Module" Load "i2c" Load "bitmap" Load "ddc" Load "dri" Load "extmod" Load "freetype" Load "glx" Load "int10" Load "type1" Load "vbe" EndSection Section "InputDevice" Identifier "Generic Keyboard" Driver "kbd" Option "CoreKeyboard" Option "XkbRules" "xorg" Option "XkbModel" "pc105" Option "XkbLayout" "de" Option "XkbVariant" "nodeadkeys" EndSection Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" Option "Device" "/dev/input/mice" Option "Protocol" "ExplorerPS/2" Option "Emulate3Buttons" "true" EndSection Section "Device" Identifier "MatroxG550_1" Driver "mga" BusID "PCI:1:0:0" Option "OldDmaInit" "True" Screen 0 EndSection Section "Device" Identifier "MatroxG550_2" Driver "mga" BusID "PCI:1:0:0" Option "OldDmaInit" "True" Screen 1 EndSection Section "Monitor" Identifier "NECMonitor1" Option "DPMS" HorizSync 32-82 VertRefresh 56-75 Modeline "1680x1050@60" 154.20 1680 1712 2296 2328 1050 1071 1081 1103 EndSection Section "Monitor" Identifier "NECMonitor2" Option "DPMS" HorizSync 32-82 VertRefresh 56-75 Modeline "1680x1050@60" 154.20 1680 1712 2296 2328 1050 1071 1081 1103 EndSection Section "Screen" Identifier "LeftScreen" Device "MatroxG550_1" Monitor "NECMonitor1" DefaultDepth 24 SubSection "Display" Depth 24 Modes "1680x1050" "1280x1024" EndSubSection EndSection Section "Screen" Identifier "RightScreen" Device "MatroxG550_2" Monitor "NECMonitor2" DefaultDepth 24 SubSection "Display" Depth 24 Modes "1680x1050" "1280x1024" EndSubSection EndSection Section "ServerLayout" Identifier "Default Layout" Screen 0 "LeftScreen" 0 0 Screen 1 "RightScreen" RightOf "LeftScreen" Option "Xinerama" "On" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection Section "DRI" Mode 0666 EndSection ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV