Bart Dorlandt - BAMweb.nl

Yesterday I finally did an upgrade on my Ubuntu linux environment. The laptop went smooth, no issues and Unity started without a problem.

Though, on my other machine (with dual screen/monitor setup) it was a bit more difficult.

Tips:

1. move your xorg.conf and restart (or reload gnome)
   1. mv /etc/X11/xorg.conf /etc/X11/xorg.conf.old
2. Install new drivers. For nvidia follow these:

   1. sudo add-apt-repository ppa:xorg-edgers/ppa
      sudo apt-get update
      sudo apt-get upgrade

3. Install disper to help you

   1. sudo add-apt-repository ppa:disper-dev/ppa && sudo apt-get update
      sudo apt-get install disper

   2. http://willem.engen.nl/projects/disper/

   3. disper -d auto -e

   4. This command will auto extend your current single monitor setup. Save it afterwards with your Nvidia settings manager (if you use nvidia)
   5. You may want to use an indicator: http://eggeral.blogspot.com/2011/04/disper-indicator-for-switching-nvidia.html
4. Use my config below if needed.

My config looks like this now. This may help you:

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
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      "Samsung SyncMaster"
    HorizSync       30.0 - 81.0
    VertRefresh     56.0 - 60.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GT 220"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "CRT-1"
    Option         "metamodes" "DFP: 1920x1080 +0+0, CRT: 1920x1080 +1920+0; DFP: 1920x1080 +0+0, CRT: NULL"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection