lk/system/X.md

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2020-01-02 00:04:35 +00:00
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