I haven't worked on this problem for awhile, but there are a few things I've deduced from playing with it. First, I haven't done anything with Xinerama. My video cards were both Matrox Millennium II's. My monitors were not matched, using just what I have available: I have a Dell D-1526T-HS for the main monitor. My other monitors were less capable: I used either a Relisys RTL-8029, Compudyne KD-1440N,Laser 6448/51, or NEC 2A. I have only had both monitors working if I used 640x480 for each one. When I went to higher resolutions, the non-Dell monitor would go "scrambly"....All of the non-Dell monitors seemed to require a vert. freq. <60, but because the Dell could do the mode at >60, the Dell's settings were being used for both monitors, despite listing both monitors and both cards and what freq's they should be using in my config file. I am guess that a matched-pair of monitors will get me past this problem, and the project of running dual-display has been tabled until then.
The other thing I want to mention is that I was initially using Gnome. Somebody pointed out to me that Gnome doesn't do multiple displays well. So I changed to KDE. With KDE, I have almost identical screens on both monitors (640x480), except no icons on the desktop for display #2. The icons on desktop #1 will NOT drag to desktop #2, but can be copied and pasted to desktop #2 (I guess it was too much to expect it to work like the multiple-monitor setup I have on the Win 2000 box). Also, my default of having 4 virtual desktops on screen #1 was duplicated to having another 4 on desktop #2. It is my thought that in a final configuration I would use only 2 virtual desktops on each screen, maybe it'll free some system resources. Steve ----- Original Message ----- From: "Kris Kelley" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, March 07, 2002 7:22 PM Subject: [Newbie]Two monitors. > Hello all. > > I'm trying to enable dual monitor support on a box running a fresh > install of Red Hat 7.1 (kernel 2.4.2, XFree86 4.0.3). I have an NVidia > GForce2 AGP card, and a 3dfx Voodoo3 2000 PCI card, both connected to > Mitsubishi Diamond Plus 200 monitors. > > I found the Xinerama HOWTO, and under its guidance I was able to produce > XFree86Config files that worked when either one card or the other was > installed. That is, when the NVidia is physically removed, the system > works just fine using the 3dfx, and, it also works fine when only the > NVidia is installed. The system even works fine with both cards > physically attached, but only the NVidia configured to be used by X. > The trouble starts when I try to use both cards together, or the 3dfx by > itself, when both cards are physically installed. While both monitors > do get a signal, they are blank, and the machine locks up hard, forcing > me to reboot. I'm using GNOME 1.2.4 for my window manager, if that > makes any difference. > > I know there are more recent versions of the kernel and of XFree86 > available, but trying to install their RPMs threw me into a tangle of > dependencies that eventually forced me to give up and reinstall from > scratch. So, I'm hoping I can get a two-monitor set-up working before I > start braving upgrades again. > > I don't have my configuration files available at the moment (victims of > the reinstall), but I can recreate them if necessary, and really I did > nothing more than what was instructed in the Xinerama HOWTO. I verified > by cut-and-paste that each device/monitor/screen combination worked by > itself for each card, so I am confident there were no typos. The > relationship between the screens was simple: "Screen1" RightOf > "Screen0". Both were going to run at the same resolution and same color > depth, and both cards are capable of the requested resolutions > (1152x864x16). > > I'll be happy to provide any additional information necessary, and feel > free to steer me towards any documentation I may have missed. This is > my first real tinkering with X, and it's becoming a daunting challenge! > > ---Kris Kelley > > _______________________________________________ > Newbie mailing list > [EMAIL PROTECTED] > *** To unsubscribe , or change message options, see: > http://XFree86.Org/mailman/listinfo/newbie > > _______________________________________________ Newbie mailing list [EMAIL PROTECTED] *** To unsubscribe , or change message options, see: http://XFree86.Org/mailman/listinfo/newbie
