brick writes: > Hi > > My system is CentOS 6. I need to edit xorg.conf. But it can't be find in > /etc/X11. Where is it? How can I get the default setting? /var/log/Xorg.0.log will tell you which configuration Xorg is currently using, which devices are autodetected etc. If you need to change only particular parts of the config, you can drop a .conf file with the corresponding Section into /etc/X11/xorg.conf.d. E.g. if you needed a UK keyboard instead of the default US, you could use something along the lines of # cd /etc/X11/corg.conf.d # cat keyboard.conf Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "gb" EndSection #