Red Hat Linux includes its own tool for configuring X called Xconfigurator. If you are installing Red Hat Linux, the install procedure automatically runs XConfigurator. You can also re-configure X at any time by typing the following from the command line:
After Xconfigurator has been started, you are prompted to select your graphics card. If your card is on the list, select it and click OK to move to the next step.
If you cannot find your card on the list, try looking for your graphics chipset instead. Many times the Xconfigurator list will not include every brand of card that uses a particular chipset. Your video card's manual should contain information regarding ...