#!/bin/bash TMPBG=/tmp/screen.png LOCK=$HOME/lock.png RES=$(xrandr | grep 'current' | sed -E 's/.*current\s([0-9]+)\sx\s([0-9]+).*/\1x\2/') ffmpeg -f x11grab -video_size $RES -y -i $DISPLAY -i $LOCK -filter_complex "boxblur=5:1,overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2" -vframes 1 $TMPBG -loglevel quiet i3lock -i $TMPBG rm $TMPBG