3 xrandr --newmode "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync
4 xrandr --addmode VGA1 "1920x1080_60.00"
5 xrandr --auto --output VGA1 --mode 1920x1080_60.00 --right-of LVDS1
9 redshift -m randr:crtc=0 -O 3000
10 redshift -m randr:crtc=1 -O 5000
12 # need to reset wallpaper too