Fedora releases since Fedora 10 do not create a
/etc/X11/xorg.conf file, used to configure the X server, by default. The X configuration is automatically determined each time X is started. In most cases, this works well and there is no need to manually specify X configuration information.
If you need to make manual changes to X configuration for any reason, you will first need to create a
/etc/X11/xorg.conf file. There are several ways of doing this.
If you have the
package installed, you can use the system-config-display command to create a configuration file. You can run it interactively simply by running system-config-display as root (or find it in the system menus under System > Administration > Display). This may not work if you cannot run X at all. In this case, you can run it non-interactively by using the --noui parameter, like so:
This will create a clean
/etc/X11/xorg.conf file using the automatically detected driver for your video card. If you wish to specify a particular driver for your card you can simply create a standard
/etc/X11/xorg.conf file and then edit it by hand, but you can also do this directly with system-config-display. For example, to specify the nv driver, you could do:
system-config-display --noui --set-driver=nv
When using the --set parameters, --noui is implied, so you do not really need to include it.
If you do not have the
package installed and cannot easily install it (for instance, you are stuck without X, and networking is not working), you can create a basic
xorg.conf using the X executable itself. As root, run:
This will create the file
/root/xorg.conf.new, which you can then move to
mv /root/xorg.conf.new /etc/X11/xorg.conf
and edit according to your needs. Note that this will only work if no X server is currently running.