From owner-freebsd-x11@FreeBSD.ORG Fri Jul 20 22:21:32 2007 Return-Path: Delivered-To: freebsd-x11@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6DB6C16A417 for ; Fri, 20 Jul 2007 22:21:32 +0000 (UTC) (envelope-from lists@jnielsen.net) Received: from ns1.jnielsen.net (ns1.jnielsen.net [69.55.238.237]) by mx1.freebsd.org (Postfix) with ESMTP id 4ECD213C442 for ; Fri, 20 Jul 2007 22:21:32 +0000 (UTC) (envelope-from lists@jnielsen.net) Received: from localhost (jn@ns1 [69.55.238.237]) (authenticated bits=0) by ns1.jnielsen.net (8.12.9p2/8.12.9) with ESMTP id l6KMLRpT026551; Fri, 20 Jul 2007 18:21:29 -0400 (EDT) (envelope-from lists@jnielsen.net) From: John Nielsen To: freebsd-x11@freebsd.org Date: Fri, 20 Jul 2007 18:20:50 -0400 User-Agent: KMail/1.9.7 References: <51938.192.168.2.230.1184962187.squirrel@squirrelmail.morningside.edu> In-Reply-To: <51938.192.168.2.230.1184962187.squirrel@squirrelmail.morningside.edu> X-Face: #X5#Y*q>F:]zT!DegL3z5Xo'^MN[$8k\[4^3rN~wm=s=Uw(sW}R?3b^*f1Wu*.<=?utf-8?q?of=5F4NrS=0A=09P*M/9CpxDo!D6?=)IY1w<9B1jB; tBQf[RU-R<,I)e"$q7N7 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200707201820.51707.lists@jnielsen.net> X-Virus-Scanned: ClamAV version 0.88.4, clamav-milter version 0.88.4 on ns1.jnielsen.net X-Virus-Status: Clean Cc: Subject: Re: Quad-Screen Xinerama/Twinview weirdness 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: Fri, 20 Jul 2007 22:21:32 -0000 On Friday 20 July 2007, Shaun Meyer wrote: > I have been attempting to build a quad-display desktop using xorg, > nvidia-driver-9331, nvidia-settings, and xfce4 out of ports on my fresh > 6.2-release box. > On the hardware side is one dual head nvidia agp card, and one (dual > head) nvidia PCI (Geforce 4 Ti 4200 + FX 5200) > > My first impulse is to bypass twinview altogether and run them all on > "Seperate X screens" in nvidia-settings with Xinerama. > > Upon X-restart the result is spectacular: Four introductory Nvidia logos, > windows maximize like they should, etc, etc. Except performance is > miserable and sluggish. > > When I change the configs around for two twinview screens, performance is > great, as it is when I use just one screen except applications now feel > like maximizing across two screens. > > How can I make this setup work properly? Have you tried a Twinview setup_without_ loading Xorg's Xinerama module? (omitting any Xinerama flags or options in xorg.conf). The nvidia driver has its own Xinerama library but it can'e be loaded if Xorg's is already present. I've had good results with this approach using a single dual-head card, but haven't played with it much beyond that. Try it and let us know how it works out! JN