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Thread: Help with Dual Monitors

  1. #1

    Default Help with Dual Monitors

    Having problems running an extended display on Suse 11.1

    Primary monitor is an Asus Z53F, 1280x800
    Second is a 32" Samsung TV (DVI) 1280x768

    At the moment it only works when they are both running 1024x768.

    Compiz/emerald is running fine.

    Had problems with this same laptop on Ubuntu 9.04, same issue.

    Here is my current Xorg.conf
    # /.../
    # SaX generated X11 config file
    # Created on: 2009-09-24T01:06:59+1200.
    #
    # Version: 8.1
    # Contact: Marcus Schaefer <sax@suse.de>, 2005
    # Contact: SaX-User list <https://lists.berlios.de/mailman/listinfo/sax-users>
    #
    # Automatically generated by [ISaX] (8.1)
    # PLEASE DO NOT EDIT THIS FILE!
    #

    Section "Files"
    FontPath "/usr/share/fonts/misc:unscaled"
    FontPath "/usr/share/fonts/local"
    FontPath "/usr/share/fonts/75dpi:unscaled"
    FontPath "/usr/share/fonts/100dpi:unscaled"
    FontPath "/usr/share/fonts/Type1"
    FontPath "/usr/share/fonts/URW"
    FontPath "/usr/share/fonts/Speedo"
    FontPath "/usr/share/fonts/PEX"
    FontPath "/usr/share/fonts/cyrillic"
    FontPath "/usr/share/fonts/latin2/misc:unscaled"
    FontPath "/usr/share/fonts/latin2/75dpi:unscaled"
    FontPath "/usr/share/fonts/latin2/100dpi:unscaled"
    FontPath "/usr/share/fonts/latin2/Type1"
    FontPath "/usr/share/fonts/latin7/75dpi:unscaled"
    FontPath "/usr/share/fonts/baekmuk:unscaled"
    FontPath "/usr/share/fonts/japanese:unscaled"
    FontPath "/usr/share/fonts/kwintv"
    FontPath "/usr/share/fonts/truetype"
    FontPath "/usr/share/fonts/uni:unscaled"
    FontPath "/usr/share/fonts/CID"
    FontPath "/usr/share/fonts/ucs/misc:unscaled"
    FontPath "/usr/share/fonts/ucs/75dpi:unscaled"
    FontPath "/usr/share/fonts/ucs/100dpi:unscaled"
    FontPath "/usr/share/fonts/hellas/misc:unscaled"
    FontPath "/usr/share/fonts/hellas/75dpi:unscaled"
    FontPath "/usr/share/fonts/hellas/100dpi:unscaled"
    FontPath "/usr/share/fonts/hellas/Type1"
    FontPath "/usr/share/fonts/misc/sgi:unscaled"
    FontPath "/usr/share/fonts/xtest"
    FontPath "/opt/kde3/share/fonts"
    InputDevices "/dev/gpmdata"
    InputDevices "/dev/input/mice"
    EndSection

    Section "ServerFlags"
    Option "AIGLX" "on"
    Option "AllowMouseOpenFail" "on"
    Option "ZapWarning" "on"
    EndSection

    Section "Module"
    Load "glx"
    Load "extmod"
    Load "freetype"
    Load "dbe"
    Load "dri"
    EndSection

    Section "InputDevice"
    Driver "kbd"
    Identifier "Keyboard[0]"
    Option "Protocol" "Standard"
    Option "XkbLayout" "us"
    Option "XkbModel" "microsoftpro"
    Option "XkbRules" "xfree86"
    EndSection


    Section "InputDevice"
    Driver "mouse"
    Identifier "Mouse[1]"
    Option "Buttons" "17"
    Option "Device" "/dev/input/mice"
    Option "Name" "Microsoft Wireless Optical Desktop? 2.10"
    Option "Protocol" "explorerps/2"
    Option "Vendor" "Sysp"
    Option "ZAxisMapping" "4 5"
    EndSection

    Section "InputDevice"
    Driver "synaptics"
    Identifier "Mouse[3]"
    Option "Buttons" "5"
    Option "Device" "/dev/input/mice"
    Option "Emulate3Buttons" "on"
    Option "HorizScrollDelta" "0"
    Option "InputFashion" "Mouse"
    Option "Name" "Synaptics;Touchpad"
    Option "Protocol" "explorerps/2"
    Option "SHMConfig" "on"
    Option "Vendor" "Sysp"
    Option "ZAxisMapping" "4 5"
    EndSection


    Section "Monitor"
    DisplaySize 305 230
    HorizSync 29-52
    Identifier "Monitor[0]"
    ModelName "1280X800@60HZ"
    Option "DPMS"
    Option "PreferredMode" "1280x800"
    VendorName "--> LCD"
    VertRefresh 50-60
    UseModes "Modes[0]"
    EndSection


    Section "Modes"
    Identifier "Modes[0]"
    EndSection


    Section "Screen"
    DefaultDepth 24
    SubSection "Display"
    Depth 15
    Modes "1280x800" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    Virtual 2048 1200
    EndSubSection
    SubSection "Display"
    Depth 16
    Modes "1280x800" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    Virtual 2048 1200
    EndSubSection
    SubSection "Display"
    Depth 24
    Modes "1280x800" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    Virtual 2048 1200
    EndSubSection
    SubSection "Display"
    Depth 8
    Modes "1280x800" "1280x768" "1280x720" "1024x768" "1280x600" "1024x600" "800x600" "768x576" "640x480"
    Virtual 2048 1200
    EndSubSection
    Device "Device[0]"
    Identifier "Screen[0]"
    Monitor "Monitor[0]"
    EndSection


    Section "Device"
    BoardName "945 GM"
    Driver "intel"
    Identifier "Device[0]"
    Option "SaXDualHead"
    Option "monitor-VGA" "Monitor[0]"
    Option "SaXDualMonitorVendor" "--> VESA"
    Option "SaXDualOrientation" "LeftOf"
    Option "SaXDualResolution" "1024x768"
    Option "SaXDualMode" "Xinerama"
    Option "SaXDualHSync" "31-50"
    Option "SaXDualMonitorModel" "1024X768@60HZ"
    Option "SaXDualVSync" "50-60"
    Option "SaXExternal" "Identifier&EXT+DisplaySize&+VendorName&--> VESA+LeftOf&Monitor[0]+PreferredMode&1024x768+HorizSync&31-50+ModelName&1024X768@60HZ+VertRefresh&50-60"
    Option "monitor-LVDS" "EXT"
    Screen 0
    VendorName "Intel"
    EndSection


    Section "Monitor"
    HorizSync 31-50
    Identifier "EXT"
    ModelName "1024X768@60HZ"
    Option "LeftOf" "Monitor[0]"
    Option "PreferredMode" "1024x768"
    VendorName "--> VESA"
    VertRefresh 50-60
    EndSection


    Section "ServerLayout"
    Identifier "Layout[all]"
    InputDevice "Keyboard[0]" "CoreKeyboard"
    InputDevice "Mouse[1]" "CorePointer"
    InputDevice "Mouse[3]" "SendCoreEvents"
    Option "Clone" "off"
    Option "Xinerama" "off"
    Screen "Screen[0]"
    EndSection


    Section "DRI"
    Group "video"
    Mode 0660
    EndSection

    Section "Extensions"
    Option "Composite" "on"
    EndSection
    Any help much appreciated.

  2. #2
    Join Date
    Aug 2008
    Location
    Brazil
    Posts
    3,240

    Default Re: Help with Dual Monitors

    It seems your virtual screen size is set to 2048 x 1200. To accommodate two 1280 x 800 screens it should be 2560 x (>=800), or 1280 x 1600 if you want to stack them.

    I remember reading about some limitations in virtual screen size, possibly depending on the Xorg version you're running, you may want to research this first.

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