dot_testing/scripts/disp

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#!/bin/sh
exists() {
xrandr | grep ' connected' | grep "${1}" | wc -l
}
# usual setup: thinkpad x220 on dock connected to external
# monitor
[ $(exists "HDMI2") -gt 0 ] && \
[ $(exists "LVDS1") -gt 0 ] && \
xrandr --output LVDS1 --below HDMI2 --auto && \
exit 0 || exit 1
# thinkpad x220 connected to display on local port
[ $(exists "HDMI1") -gt 0 ] && \
[ $(exists "LVDS1") -gt 0 ] && \
xrandr --output LVDS1 --below HDMI1 --auto && \
exit 0 || exit 1
# only the thinkpad
[ $(exists "HDMI2") -eq 0 ] && \
[ $(exists "LVDS1") -gt 0 ] && \
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xrandr --output HDMI2 --off && \
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exit 0 || exit 1
exit 1