Second display without relying on the simulated second display overlay

[Nucks1000]

After following your guide, it worked almost perfectly. My only complaint is that there is an overlay covering my phone screen. The second I saw it, I instantly realised how you got this to work so I knew how to turn it off within the developer options. My problem is that I would like not to have the overlay on my phone while using this script. Is this possible? If not, you've done a grand job regardless, thank you.

[nikp123]

Unless you can enable a secondary screen without that developer options trick, I don't think it is possible. But to be super sure about that we'd need to actually go through the AOSP source tree which is something I am not motivated to do ATM. But overall it's a very valid suggestion. Leaving this open in case someone smarter or motivated happens to find this (someone familiar with the AOSP project at the very least).