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this relies on a requirement that is not part of my (2.7.12) stdlib; i almost deleted it. instead, i will keep for fun and note the requirement for further research
author Jeff Hammel <k0scist@gmail.com>
date Fri, 28 Oct 2016 17:09:04 -0700
parents 71345f4de3ce
children
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#!/bin/bash

# swap screens between internal laptop monitor and external monitor
# XXX sensitive to the individual laptop :(

# See also `unxrandr`:
# unxrandr - inverse tool of xrandr
# unxrandr  is  a  tool  that  queries  the  XRandR  state using ARandR's
# libraries and outputs an xrandr command line that reproduces the  state


INTERNAL="LVDS1"
EXTERNAL="VGA1"
INTERNAL_MODE="1366x768"
EXTERNAL_MODE="1600x1200"

xwininfo -root | grep "geometry $EXTERNAL_MODE"
if [ $? -eq 0 ]
then
 xrandr --output $EXTERNAL --off --output $INTERNAL --mode $INTERNAL_MODE
else
 xrandr --output $INTERNAL --off --output $EXTERNAL --mode $EXTERNAL_MODE
fi