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dotfiles/scripts/dock-displays

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#!/bin/sh
set -e
SCALE=${1:-1.4}
OUTPUT=eDP1
NWIDTH=2160
NHEIGHT=1440
WIDTH="$(bc <<< "$NWIDTH / $SCALE")" # $(($NWIDTH / $SCALE))
HEIGHT="$(bc <<< "$NHEIGHT / $SCALE")" # $(($NHEIGHT / $SCALE))
MODELINE=$(cvt $WIDTH $HEIGHT | sed -n 's/Modeline\s*//p' | tr -d \")
MODENAME=${MODELINE%% *}
xrandr --newmode $MODELINE 2>/dev/null || true
xrandr --addmode $OUTPUT $MODENAME 2>/dev/null || true
xrandr --output $OUTPUT --mode $MODENAME
feh --no-fehbg --no-xinerama --bg-fill ~/pictures/lakesidesunrise.jpg