Hi again,
I gave it a try again.
I still struggle to get it working. However, it could be due to my tiling
window manager (i3wm).
1. I did not find a way to get the second screen really in full screen. I
always end up with some gray boarders.
2. I can see a kind of frame but independently of what I
I am not a developer but I am highly interested in this.
For the moment I use Xorg capabilities to show a part of the main
screen on the secondary screen. This works surprisingly well but
requires tweaking whenever the display resolution of the projector
changes.
In addition to have a second screen
