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#!/usr/bin/env bash
# get the displays which are connected and setup an associative array
DISPLAYS=( $(xrandr | grep " connected" | awk '{print $1}') )
declare -A DISP_RES
BG_IMG="~/pictures/Yosemite-Color-Block.png"
VERBOSE=""
if_echo () {
if [ -n "$VERBOSE" ]; then
echo $1
fi
}
while getopts ":h" opt; do
case ${opt} in
h ) VERBOSE="on"
;;
\? ) echo "read the script for help; -v for verbose logging"
;;
esac
done
for (( i=0; i <${#DISPLAYS[@]}; i++ )); do
# store the assocated resolutions
DISPLAY_NAME=${DISPLAYS[i]}
DISP_RES["$DISPLAY_NAME"]=$(xrandr | grep "^$DISPLAY_NAME" -A 1 | tail -n 1 | awk '{print $1}')
done
# We setup a consistent monitor ordering as follows...
# ----- ----- ------ ------
# | DP-1 | | DP-2 | | HDMI-1 | | HDMI-2 |
# ----- ----- ------ ------
# \ \ / /
# \ | | /
# \ ----- /
# \ | eDP-1 |----/
# _____
EDP_1=${DISP_RES["eDP-1"]}
DP_1=${DISP_RES["DP-1"]}
DP_2=${DISP_RES["DP-2"]}
HDMI_1=${DISP_RES["HDMI-1"]}
if [ -n "$EDP_1" ]; then
# if no other displays are set, then we bring all windows into eDP-1
if [[ -z "$DP_1" && -z "$DP_2" && -z "$HDMI_1" ]]; then
if_echo "No displays detected. Resetting primary display (eDP-1)"
xrandr --auto
else
if_echo "Found other displays, and explicitly setting primary display (eDP-1)"
xrandr --output eDP-1 --mode "$EDP_1"
fi
fi
if [ -n "$DP_1" ]; then
if_echo "Found DP-1. Setting DP-1 above primary display (eDP-1)"
xrandr --output DP-1 --mode "$DP_1" --above eDP-1
fi
if [[ -n "$DP_2" && -n "$DP_1" ]]; then
if_echo "Found DP-2. Setting DP-2 right of DP-1"
xrandr --output DP-2 --mode "$DP_2" --right-of DP-1
elif [[ -n "$DP_2" ]]; then
if_echo "Found DP-2 but not DP-1. Setting DP-2 above primary display (eDP-1)"
xrandr --output DP-2 --mode "$DP_2" --above eDP-1
fi
if [[ -n "$HDMI_1" && -n "$DP_2" && "$DP_1" ]]; then
if_echo "Found HDMI-1. Setting it right of DP-2"
xrandr --output HDMI-1 --mode "$HDMI_1" --right-of DP-2
elif [[ -n "$HDMI_1" && ( "$DP_2" || "$DP_1" ) ]]; then
if [ -n "$DP_2" ]; then
if_echo "Found HDMI-1 and DP-2 but not DP-1. Setting HDMI-1 right of DP-2"
xrandr --output HDMI-1 --mode "$HDMI_1" --right-of DP-2
else
if_echo "Found HDMI-1 and DP-1 but not DP-2. Setting HDMI-1 right of DP-1"
xrandr --output HDMI-1 --mode "$HDMI_1" --right-of DP-1
fi
fi
feh bg-fill "$IMG"
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