how can I install nvidea dual head drivers in Cassandra?

[Husse]

Dual head? I suppose you mean dual monitor...
That seems pretty straight forward.
See to it that you have the 3D drivers installed - you can do that with the help of envy
First get the latest envy - look at the Planet for september 19
http://www.linuxmint.com/planet/Alberto ... _available
Then edit xorg.conf slightly, but back it up first
sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf_backup
Under the screen section, add the following lines:

Code: Select all

Option “RenderAccelâ€￾ “trueâ€￾
Option “TwinViewâ€￾
Option “MetaModesâ€￾ “1280×1024 1280×1024″

If you want other resolutions change accordingly
Restart X with Ctrl+Alt+Backspace and you should have two screens. If the orientation of the screens is off, try this under the “Screenâ€￾ heading…

Option “TwinViewOrientationâ€￾ “LeftOfâ€￾

LeftOf can be LeftOf, RightOf, Below, Above, or Clone.

[Lolo Uila]

I just entered "sudo nvidia-settings" in a terminal and used the nVidia Control Panel to set mine up.

[Husse]

You're right Lolo Uila
Only that the first section of nvidia settings saves a standard xorg.conf and all customizations will be gone, like the special settings for Beryl
Screen0 and below are not affected and needs another treatment to be sticky