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sterculus 04-17-2013 03:35 PM

Double GNOME UI with Debian and 3 Xinerama monitors
 
Hi,

I have a Debian 7.0 system which I'm trying to set up with 3 monitors. I'm using a Quadro NVS 420 card with the latest NVidia drivers. I configured it using Xinerama and the nvidia-settings utility, and the three desktops appear just fine, but on the main one all of the GNOME UI elements are duplicated, e.g. the menu items at the top black bar all appear twice. Each menu of the duplicates is fully functional so it's not just a display issue.

I don't even know where to look for what would cause this. Here is my xorg.conf:
Code:

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 295.59  (buildmeister@swio-display-x86-rhel47-03.nvidia.com)  Wed Jun  6 22:23:02 PDT 2012

Section "ServerLayout"
    Identifier    "Layout0"
    Screen      0  "Screen0" 0 0
    Screen      1  "Screen1" 3360 0
    Screen      2  "Screen2" 1680 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option        "Xinerama" "1"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier    "Mouse0"
    Driver        "mouse"
    Option        "Protocol" "auto"
    Option        "Device" "/dev/psaux"
    Option        "Emulate3Buttons" "no"
    Option        "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier    "Keyboard0"
    Driver        "kbd"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier    "Monitor0"
    VendorName    "Unknown"
    ModelName      "DELL 2009W"
    HorizSync      30.0 - 83.0
    VertRefresh    56.0 - 75.0
    Option        "DPMS"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier    "Monitor1"
    VendorName    "Unknown"
    ModelName      "DELL 2009W"
    HorizSync      30.0 - 83.0
    VertRefresh    56.0 - 75.0
    Option        "DPMS"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier    "Monitor2"
    VendorName    "Unknown"
    ModelName      "DELL 2009W"
    HorizSync      30.0 - 83.0
    VertRefresh    56.0 - 75.0
    Option        "DPMS"
EndSection

Section "Device"
    Identifier    "Device0"
    Driver        "nvidia"
    VendorName    "NVIDIA Corporation"
    BoardName      "Quadro NVS 420"
    BusID          "PCI:3:0:0"
    Screen          0
EndSection

Section "Device"
    Identifier    "Device1"
    Driver        "nvidia"
    VendorName    "NVIDIA Corporation"
    BoardName      "Quadro NVS 420"
    BusID          "PCI:4:0:0"
EndSection

Section "Device"
    Identifier    "Device2"
    Driver        "nvidia"
    VendorName    "NVIDIA Corporation"
    BoardName      "Quadro NVS 420"
    BusID          "PCI:3:0:0"
    Screen          1
EndSection

Section "Screen"
    Identifier    "Screen0"
    Device        "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option        "TwinView" "0"
    Option        "TwinViewXineramaInfoOrder" "DFP-1"
    Option        "metamodes" "DFP-0: nvidia-auto-select +0+0"
    SubSection    "Display"
        Depth      24
    EndSubSection
EndSection

Section "Screen"
    Identifier    "Screen1"
    Device        "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option        "TwinView" "0"
    Option        "TwinViewXineramaInfoOrder" "DFP-0"
    Option        "metamodes" "nvidia-auto-select +0+0"
    SubSection    "Display"
        Depth      24
    EndSubSection
EndSection

Section "Screen"
    Identifier    "Screen2"
    Device        "Device2"
    Monitor        "Monitor2"
    DefaultDepth    24
    Option        "TwinView" "0"
    Option        "TwinViewXineramaInfoOrder" "DFP-1"
    Option        "metamodes" "DFP-1: nvidia-auto-select +0+0"
    SubSection    "Display"
        Depth      24
    EndSubSection
EndSection

Section "Extensions"
    Option        "Composite" "Disable"
EndSection

Any suggestions?


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