Xrandrs is ultimate lightweight command-line tool (strapping) writed on bash, designed for configuration management via xrandr (official configuration utility to the RandR (Resize and Rotate) X Window System extension).
sudo wget -O /usr/bin/xrandrs https://github.com/theOSPF/xrandr-strapping/blob/master/xrandr_home.sh; sudo chmod +x /usr/bin/xrandrs
To autostart xrandrs in awesome add this line to end of rc.lua file.
os.execute("pgrep -u $USER -x xrandrs || (xrandrs &)")