Help setting up dual monitors.

[dargx001]

I have been trying to find a way that I can get one desktop to stretch across 2 displays. I am running Fedora 11 with kde 4.3 and an intel graphics card.

00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)

When I have the second monitor plugged in and I go into Multiple Monitors in Display under System Settings, I get this message:

"This module is only for configuring systems with a single desktop spread across multiple monitors. You do not appear to have this configuration."

When I plug in the external monitor, it recognizes under Size & Orientation, and I can enable it and change the resolution, however once I change the resolution higher than what my lcd supports I can't view all of the screen on my lcd, but I can on the external. What should I do. here is a copy of my xorg.conf file

Section "ServerLayout"
        Identifier     "Default Layout"
        Screen      0  "Screen0" 0 0
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"

# keyboard added by rhpxl
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105+inet"
        Option      "XkbLayout" "us"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "intel"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection

[Rubberman]

Are both monitors controlled by one video card, or two? In any case, you will need to alter your xorg.conf file to have a section "Monitor" for each display, and a section "Screen" for each with an appropriate subsection "Display" for the display associated with it. Here is a copy of my xorg.conf. I have two LCD displays attached to one adapter and I am using xinerama configured as a single display across both monitors.

# Xorg configuration created by system-config-display

Section "ServerLayout"
        Identifier     "Multihead layout"
        Screen      0  "Screen0" 0 0
        Screen      1  "Screen1" RightOf "Screen0"
        InputDevice    "Keyboard0" "CoreKeyboard"
        Option      "Xinerama" "on"
        Option      "Clone" "off"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "us"
EndSection

Section "Monitor"
        Identifier   "Monitor0"
        ModelName    "Dell 2407WFP (Digital)"
        HorizSync    30.0 - 83.0
        VertRefresh  56.0 - 76.0
        Option      "dpms"
EndSection

Section "Monitor"
        Identifier   "Monitor1"
        VendorName   "Monitor Vendor"
        ModelName    "Dell 2405FPW (Digital)"
        HorizSync    30.0 - 83.0
        VertRefresh  56.0 - 76.0
        Option      "dpms"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "nvidia"
        BusID       "PCI:7:0:0"
        Screen      0
EndSection

Section "Device"
        Identifier  "Videocard1"
        Driver      "nvidia"
        BusID       "PCI:7:0:0"
        Screen      1
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        Modes      "1920x1200"
        EndSubSection
EndSection

Section "Screen"
        Identifier "Screen1"
        Device     "Videocard1"
        Monitor    "Monitor1"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes    "1920x1200"
        EndSubSection
EndSection

You should be able to alter this appropriately for your system setup (display resolutions, monitor types and sync/refresh info, etc). However, do make a backup copy of your xorg.conf file in case it doesn't work for you. FWIW, I am running CentOS 5.4, so my xorg server is version 1.1.1 - you may be running a more recent version but that should not be a major issue here.