Howto xrandr
============

List available displays and resolutions
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xrandr

List monitors
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xrandr --listmonitors

Get number of all connected monitors and write it to variable
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xrandr --listmontors
NOMON="$(xrandr --listmonitors | awk 'NR==1{print substr($2,1,1)}')"

Get all recommended resolution and write them to variable
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xrandr | grep "*" | awk '{print $1}'
RESOLUTIONS=$(xrandr | grep "*" | awk '{print $1}')

Get actual resolution
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xrandr | grep "+"

Get all monitornames and write them to variable
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xrandr --listmonitors | awk '{print $4}'
MONITORS=$(xrandr --listmonitors | awk '{print $4}')

Switch on display if available and set maximum resolution
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xrandr --output LVDS --auto

Clone screens
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xrandr --output LVDS-0 --auto --output VGA-0 --auto --same-as LVDS-0

Split screens
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xrandr --output LVDS-0 --primary
xrandr --auto --output VGA-0 --mode 1920x1080 --right-of LVDS-0

Set layout on X-Start
---------------------
.xinitrc:

###############################
# Set Resolution to 1680x1050 #
###############################

xrandr --newmode "1680x1050_60.00"  146.25  1680 1784 1960 2240  1050 1053 1059 1089 -hsync +vsync
xrandr --addmode DVI-I-0 1680x1050_60.00
xrandr --output DVI-I-0 --mode 1680x1050_60.00

Configuration example
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default.sh:
xrandr --output eDP-1 --auto --output DP-2-2 --auto --same-as eDP-1

Call in i3-config
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exec sh ~/.screenlayout/default.sh