Backtrack: Upgrade to Linux Kernel 3.2.6 xrandr screen only supports 1920×1200

After upgrading to Linux kernel 3.2.6, rebooting, reconfiguring initramfs for encrypted drives, rebooting again, and reinstalling ati graphics, my normal xrandr command no longer worked.  That command is:

And the error was “xrandr screen only supports 1920 x 1200”

The fix is really simple….

Run the command:

Configure the dual monitors the way you normally would, but make sure the virtual screen size / Desktop Area is set to:

Exit from X completely (including any display managers like kdm/gdm/etc) and it will then work when you log back in.  A quick tip, ctrl+alt+backspace usually will restart X.

Updated to include:

Don’t forget after installing a new kernel you have to do <as root>

ldconfig

prepare-kernel-sources

update-initramfs -k 3.2.6

./ati-driver-installer-11-11-x86.x86_64.run

ldconfig

/etc/init.d/vboxdrv setup

fix-splash

reboot

amdcccle