From owner-freebsd-x11@FreeBSD.ORG Wed Apr 1 22:56:47 2009 Return-Path: Delivered-To: x11@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2520D106564A for ; Wed, 1 Apr 2009 22:56:47 +0000 (UTC) (envelope-from oberman@es.net) Received: from mailgw.es.net (mail3.es.net [IPv6:2001:400:4c01::2]) by mx1.freebsd.org (Postfix) with ESMTP id F3B428FC1C for ; Wed, 1 Apr 2009 22:56:46 +0000 (UTC) (envelope-from oberman@es.net) Received: from ptavv.es.net (ptavv.es.net [IPv6:2001:400:910::29]) by mailgw.es.net (8.14.3/8.14.3) with ESMTP id n31MujWr029955 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Wed, 1 Apr 2009 15:56:46 -0700 Received: from ptavv.es.net (ptavv.es.net [127.0.0.1]) by ptavv.es.net (Tachyon Server) with ESMTP id 8004F1CC0B for ; Wed, 1 Apr 2009 15:56:45 -0700 (PDT) To: x11@freebsd.org Date: Wed, 01 Apr 2009 15:56:45 -0700 From: "Kevin Oberman" Message-Id: <20090401225645.8004F1CC0B@ptavv.es.net> Cc: Subject: Proper configuration for dual-headed nVidia 7800GT X-BeenThere: freebsd-x11@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: X11 on FreeBSD -- maintaining and support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Apr 2009 22:56:47 -0000 I have been unable to get both heads of my nVidia 7800GT to work. I start with the output of 'Xorg --configure' and add the second Monitor and a display set for a 2560x1024 display. I get the proper display on one monitor and the other just displays "Cannot Display This Video Mode". I add "Option Dualhead" and get no screens found. I added "Option FlatPanel" and got "Cannot Display This Video Mode" on BOTH screens. Can anyone give me a clue as to how to configure this for Xrandr operation? I'm sure I am missing something obvious. I should mention that the displays are LED panels, but they use VGA, not DVI connectors, so I have DVI to VGA adaptors on both ports. I can supply logs of the various configurations. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751