Originally Posted by dtkkc4
when does the Fedora/RHEL system start x by default?
Depends on what default run level you have set, and if you've configured the system correctly.
If you have set runlevel 5 to be the default, it'll start when the system boots. If you set runlevel 3, you'll boot to a text-based console. From there, you can log in and type in 'startx'.
Before that'll work, though, you'll have had to go through X windows configuration (usually part of installation), to set up your monitor/keyboard/mouse, and test your settings.