Configurate graphic NVIDIA problems

If you run:

sudo nvidia-xconfig

It will make you a skeleton file, you can then run:

gksudo gedit /etc/X11/xorg.conf

and add:

Option "ConnectedMonitor" "DFP-0"
Option "CustomEDID" "DFP-0:/etc/X11/sonycw.bin"

under the line:

Driver "nvidia"

Save the new file, close gedit and reboot, should be fine. You will NEED to have installed the nvidia proprietary driver installing and running BEFORE you do all of this.

I change the indication as you said and it is like this:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder58) Thu Apr 22 20:35:23 PDT 2010

Section "ServerLayout"
    Identifier "Layout0"
    Screen 0 "Screen0" 0 0
    InputDevice "Keyboard0" "CoreKeyboard"
    InputDevice "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"

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

Section "InputDevice"

    # generated from default
    Identifier "Keyboard0"
    Driver "nvidia"
    Option "ConnectedMonitor" "DFP-0"
    Option "CustomEDID" "DFP-0:/etc/X11/sonycw.bin"
EndSection

Section "Monitor"
    Identifier "Monitor0"
    VendorName "Unknown"
    ModelName "Unknown"
    HorizSync 28.0 - 33.0
    VertRefresh 43.0 - 72.0
    Option "DPMS"
EndSection

Section "Device"
    Identifier "Device0"
    Driver "nvidia"
    Option "ConnectedMonitor" "DFP-0"
    Option "CustomEDID" "DFP-0:/etc/X11/sonycw.bin"
    VendorName "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier "Screen0"
    Device "Device0"
    Monitor "Monitor0"
    DefaultDepth 24
    SubSection "Display"
        Depth 24
    EndSubSection
EndSection

But I restart my notebook and the problem of the configuration NVIDIA x server still be there.
=S

Hello!
I have also a Sony laptop and just solved such a problem! My video card is Geforce 330m and I had similar problem. I installed different drivers from Ubuntu and tried anything you can imagine with limited success but then I connected with www.nvidia.com and found drivers for linux there!!! These drivers are more new then what Ubuntu has and I understand that if you have a more modern videocard the driver is simply not included in the Ubuntu server.

Download your driver from www.nvidia.com

Save it in your homefolder

Uninstall then everything what nvidia is on your computer. Try to disable the driver you have. There is something called nouveadriver or similar that can make a conflict but nvidiasetup can do that for you also.
Then restart your computer to command promt (without xserver) A terminal is not enough. To do that you may have to select the second line in grub and push e and then ctrl x to get the choices at all. I got then a root promt and typed sudo cd /home/myhomename Then I just followed the instructions from nvidia and typed sudo sh NVIDIA-Linux-x86-256.53.run after the name of the file.
Then I just followed the instructions in the setup. It disabled the drivers that was in use (nouvea..) and after a restart and the same typing everything was fine and now its just fine with the screen and videocard

Johannes