After upgrading to ubuntu7.04-

On disabling the ATI driver in Restricted Driver Manager, it removed the driver:
(Reading database … 161526 files and directories currently installed.)
Removing fglrx-control …
Removing fglrx-kernel-2.6.17-10-generic …
Removing xorg-driver-fglrx-dev …
Removing xorg-driver-fglrx …
Stopping atieventsd: done.

On doing “sudo dpkg-reconfigure -pcritical xserver-xorg” :
xserver-xorg postinst warning: overwriting possibly-customised configuration
file; backup in /etc/X11/xorg.conf.20070416100138

On enabling the ATI driver in Restricted Driver manager again:
Selecting previously deselected package xorg-driver-fglrx.
(Reading database … 161408 files and directories currently installed.)
Unpacking xorg-driver-fglrx (from …/xorg-driver-fglrx_7.1.0-8.34.8+ …
dpkg: warning – unable to delete old directory `/etc/ati’: Directory not empty
Setting up xorg-driver-fglrx (7.1.0-8.34.8+ …

And after restart:
IT WORKS!!!! 🙂

Dual Monitor Support – ATI – Big Desktop
Added the following in /etc/X11/xorg.conf :

Option “DesktopSetup” “horizontal” #Enable Big Desktop
Option “Mode2” “1280×1024” #Resolution for second monitor
Option “DesktopSetup” “LVDS,AUTO” #the types of monitors that is connected LVDS = LCD, CRT, AUTO
Option “EnablePrivateBackZ” “yes” #Enable 3d support <= May Not Work
Option “HSync2” “65” #This sets the horizontal sync for the secondary display.
Option “VRefresh2” “60” #This sets the refresh rate of the secondary display.

And rebooted with the other monitor plugged in. Horizontal big desktop loaded fine.

fglrx-control – Control panel for the ATI graphics accelerators
To run: fireglcontrol

Useful ref.:


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