srandrd - simple randr daemon
- -h
-
Print help and exit
- -n
-
Don’t fork to background
- -V
-
Show version information and exit
- -v
-
Verbose output
- -e
-
Emit connected devices at startup
- -1
-
One-shot mode; exit after emitting connected devices (implies -e)
srandrd(1) is a tool that executes a command on xrandr output change events, i.e. if a monitor is plugged or unplugged. By default srandrd forks to background and exits if the xserver exits.
The following variables are defined:
SRANDRD_OUTPUT defines the name of the graphics card output / port that triggered the event, e.g. DVI-0.
SRANDRD_EVENT defines the event that happened. It’s one of the following:
[connected|disconnected|unknown]
SRANDRD_EDID defines a semi-unique identifier of the monitor that has been connected. The identifier is usually not unique (the same) within a monitor series. The identifier has this format:
VENDOR[4]PRODUCT[4]SERIAL[8]
SRANDRD_SCREENID defines the xinerama screen id (if available). The identifier has this format:
XINERAMA_SCREENID[1..n]
An example usage could be
srandrd display_handler
where display_handler being the following script
#!/bin/sh
case "${SRANDRD_OUTPUT} ${SRANDRD_EVENT}" in
"DVI-0 connected") xrandr --output DVI-0 --auto --right-of LVDS;;
"VGA-0 connected") xrandr --output VGA-0 --auto --left-of LVDS;;
esac
github: https://github.com/jceb/srandrd
screenconfig: https://github.com/jceb/screenconfig
-
Jan Christoph Ebersbach <jceb@e-jc.de>
-
Stefan Bolte <portix@gmx.net>