This is my method, if you have an other method we'll be happy to hear it;)
(it is based on my 1680x1050 setup, by changing that to your desired resolution, all should work)
All words looking like this are to be put into a terminal. Some ways of opening the terminal are: Alt+f2 and type "xfce4-terminal". Or go to Menu --> terminal.
Because the AAO won't work with your screen at boot (you'lle get a crappy 800x600), we are going to add a new resolution to it's supported resolutions list. First we need to know all the parameters.
cvt
this command asks for the parameters of a 1680x1050 screen with a refresh rate of 60hz.
you will get something like this:
zorofroozo@zorofroozo-netbook:~$ cvt
# 1680x1050 59.95 Hz (CVT 1.76MA) hsync: 65.29 kHz; pclk: 146.25 MHz
Modeline "1680x1050_60.00" 146.25 60 53 -hsync +vsync
We need everything after "Modeline", so that is: "1680x1050_60.00" 146.25 60 53 -hsync +vsync
now we know our parameters, we are going to insert them into xrandr, the X Resize, Rotate and Reflect Extension. But we are going to make it easier for you, we are going to make a litlle script so you don't need to go into terminal all the time.
start mousepad by using alt+f2 or by going to mousepad --> Accessories --> Mousepad. And insert the following lines:
## Adds a newmode
xrandr --newmode "1680x1050_60.00" 146.25 60 53 -hsync +vsync && xrandr --addmode VGA "1680x1050_60.00"
be sure to change everything behind --newmode if you are using an other resolution. Then save your file in the directory you prefer (I chose my Home directory called zorofroozo) and call it widescreen.sh . Just run your script and go to Menu --> Settings --> Display. And choose your desired resolution.
end of the tutorial (unless ya want tha script to start at boot)
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ATTENTION, if you like you can run this script at boot (instructions below), but if you run any graphics intensive program (like urbanterror or an other game), X will start to freeze every few minutes. You can defreeze x by pressing "ctrl+alt+F6" and then "ctrl+alt+F7"
now we are going to make the script executable
chmod a+x /home/zorofroozo/widescreen.sh
be sure to change the directory into your corresponding directory.
lastly we are going to make kuki start the script at boot. Go to Menu --> Settings --> Session and Startup. Go to the Application Autostart tab. And click add. The command should be our file, widescreen.sh . Yur free to choose the rest.
Reboot :)
and then simply go to Menu --> Settings --> Display. And choose your desired resolution.