dotfiles/scripts/dock-displays

#!/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

if [ -f ~/.fehbg -a -x ~/.fehbg ]; then
    ~/.fehbg
fi