I have this desktop:

i7 2600, 8gb ram ddr3, board intel dh61ww, Geforce Nvidia GT520-cn 2Gb ddr3,

I just installed Ubuntu 12.04 64-bit (kernel 3.2.0-23-generic). I want to setup two Samsung 22" LED monitors and get my video card drivers working.

I downloaded and installed Nvidia driver 295.59. I tried the following with that driver and also with 302.17.

I ran these commands:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential linux-headers-$(uname -r),
sudo apt-get remove --purge nvidia*,
sudo apt-get remove --purge xserver-xorg-video-nouveau
vim /etc/modprobe.d/blacklist.conf
In the vim text editor, I added the following lines to blacklist.conf:

blacklist vga16fb
blacklist nouveau
blacklist rivafb
blacklist nvidiafb
blacklist rivatv
Then I ran these commands:

sh NVIDIA.run
sudo service lightdm start
I rebooted, and after rebooting ran:

nvidia-xorgconf
After reboot I got a screen resolution of 800x600. I ran nvidia-settings and it said:

You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run nvidia-xconfig as root), and restart the X server.

3) I changed xorg.conf slightly to set up a resolution to work property.

4) I don't have any image on my second monitor and I dont have any option in the Nvidia X server settings.

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 520] (rev a1)

$ egrep -i 'glx|nvidia' /var/log/Xorg.0.log

[ 12.005] (II) LoadModule: "glx"
[ 12.005] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 12.575] (II) Module glx: vendor="NVIDIA Corporation"
[ 12.585] (II) NVIDIA GLX Module 302.17 Tue Jun 12 16:22:45 PDT 2012
[ 12.585] (II) Loading extension GLX

[ 13.037] (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)

[ 13.044] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event10)
[ 13.044] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event9)

$ glxinfo | grep direct
Xlib: extension "GLX" missing on display ":0.0". Error: couldn't find RGB GLX visual or fbconfig

What can I do to fix this and get video working on my Ubuntu,debian or linuxmint system?

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