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#!/bin/bash
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export DISPLAY=":0"
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OUTPUT="HDMI-A-0"
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ORIGINAL_RES=$(xdpyinfo | grep dimensions | sed -r 's/^[^0-9]*([0-9]+x[0-9]+).*$/\1/')
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NEW_RES="${1:-$ORIGINAL_RES}"
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WM=$(wmctrl -m | head -n 1 | cut -d " " -f2)
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echo "$ORIGINAL_RES"
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set_resolution() {
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if [ "$ORIGINAL_RES" != "$NEW_RES" ]; then
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xrandr --output "$OUTPUT" --mode "$1"
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if [ "$WM" = "i3" ]; then
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i3-msg restart
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fi
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fi
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}
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set_resolution "$NEW_RES"
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