lk/system/X.md

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title tags
X
Documentation
System

X is a server which listens to requests for display.

Basic configurations are under /etc/X11, but xorg.conf is generally no longer used.

Examples can be found under /usr/share/X11/xorg.conf.d/

The xorg displays a section, then identifiers, then some options, then ends the section.

Section "InputDevice"

generated from default

Identifier

"Mouse0"

Driver

"mouse"

Option

"Protocol" "auto"

Option

"Device" "/dev/psaux"

Option

"Emulate3Buttons" "no"

Option

"ZAxisMapping" "4 5"

EndSection

Research

See current settings with:

xdpyinfo | less

Basic info can often be gained with:

man ati

man Radeon

Internet resources are available at www.x.org/wiki/Projects/Drivers/

Display Manager

This presents login options, then starts the desktop. One is LightDM manager.

The program reads the configuration files in the order of: /usr/share/lightdm/lightdm.conf.d/, /etc/lightdm/lightdm.conf.d/, then /etc/lightdm/lightdm.conf.

The file /usr/share/lightdm/lightdm.conf.d/50-gues-wrapper.conf

X defaults

~/.Xresources and ~/.Xdefaults load basic X settings.

Xdefaults is loaded each time if no Xresources is present.

If Xresources is present, Xdefaults it ignored. Xresources is loaded with:

xrdb ~/.Xresources