I'm new to bash scripting, and I'm trying to configure my video outputs so that my laptop display gets turned off when I connect an external monitor via VGA.

That's the script I came up with, pretty straightforward:

```
#!/bin/bash
myvar="$(xrandr -q)"
if [[ $myvar == *"VGA connected"* ]]
    then
        xrandr --output VGA --auto;
        xrandr --output LVDS --off;
    else
        xrandr --output LVDS --auto;
fi

```

All is working as it should except for the `xrandr --output LVDS --off` bit, as my laptop display simply adjusts its resolution to match the external monitor's one and stays on.

Can't figure out the bug on this one. Any help is appreciated.