Add hotkey to change monitors

private_dot_config/awesome/rc.lua

@@ -257,6 +257,14 @@ globalkeys = gears.table.join(
         function() awful.spawn.with_shell('pactl set-sink-volume `pactl get-default-sink` -5%') end,
         { description = "decrease the volume", group = "volume" }),
 
+    -- Monitor change
+    awful.key({ modkey, "Control" }, "m",
+        function()
+          awful.spawn.spawn('/home/chips/.local/bin/chdp')
+          awesome.restart()
+        end,
+        { description = "change active monitor", group = "display" }),
+
     -- Lock screen
     awful.key({ modkey }, "q", function() awful.spawn.with_shell('dm-tool lock') end,
         { description = "lock", group = "power" }),

private_dot_local/bin/executable_chdp

@@ -0,0 +1,16 @@
+#!/bin/bash
+small=HDMI-0
+big=DP-1
+
+small_used=`xrandr --listactivemonitors | grep "$small"`
+small_used_len=${#small_used}
+echo $small_used_len
+
+current=$small
+next=$big
+if [[ small_used_len -eq 0 ]]; then 
+    current=$big
+    next=$small
+fi
+
+xrandr --output "$current" --off --output "$next" --auto