Finally I decided to try again the Ubuntu 7.04 live cd. Now I'm using Ubuntu... so... I'm Finally a Human Being!!!
I booted and selected the "Start or install Ubuntu" option.
When the screen showed a garbled display I pressed "crtl-alt-f2" and ran the command :
sudo dpkg-reconfigure xserver-xorg
Then I chose the following options :
Attempt to autodetect video hardware? : "Yes"
X server driver : "ati"
Identifier for your video card : "ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500]"
Video card's Bus identifier : "PCI:1:0:0"
Amount of memory (KB) to be used by the video card : "32768"
Use Kernel Framebuffer device interface : "Yes"
Then a few questions about the Keyboard & mouse
Write default files section to configuration file ? : "Yes"
Attempt Monitor Autodetection ? : "Yes"
Identifier for the monitor : "Generic Monitor"
Video Modes to be used by the X server : "1400 x 1050"
Method for selecting the monitor characteristics ? : "Medium"
Resolution : "1400x1050 @ 60Hz"
Write monitor sync ranges to the configuration file : "Yes"
Desired default color depth in bits : "16"
Then I returned to the console usign the crtl-alt-F7
And pressed the ctrl-alt-backspace twice. Then the gnome restarted with a 1400x1050 @ 60Hz resolution without problem.
I installed the distribution and rebooted.
Then I opened a terminal and I edited manually the /etc/X11/xorg.conf file.
In the following link you can download my xorg.conf.
The glxgears shows an average of 1000fps.
I pressed the button "Enable Desktop Effect" and activate the options :
"Windows Wobble when Moved"
"Workspaces on a Cube"
But the cube effect didn't work until I ran the following two commands :
gconftool-2 --type int --set /apps/compiz/general/screen0/options/hsize 4
gconftool-2 --type int --set /apps/compiz/general/screen0/options/number_of_desktops 1
Then I pressed the ctrl+alt+left or the ctrl+alt+
Now I'm using Ubuntu... so... I'm Finally a Human Being!!!