In working with multiple monitors under Ubuntu Gutsy, I’ve had to tweak the dreaded xorg.conf file from time to time. Occasionally, I’ve had to start from scratch and create a fresh xorg.conf file. Here’s how to do it:
- Choose Applications > Accessories > Terminal.
- In the Terminal window, enter
sudo dpkg-reconfigure -phigh xserver-xorg
then press Enter.
- If asked to enter your password, do so, then press Enter again.
xorg configuration then opens. Follow the instructions/prompts to create your new configuration.