Hi, I first saved some file before the settings change, and then changed the iPad resolution everywhere. The image enlarged excessively and even a black screen appeared on both devices, on a laptop the icons were visible. Restarted laptop and reconnected, ipad image came up huge again. Then I noticed another place – CONTROL on wall settings, where the resolution was huge, so I changed it there too and now the image is fine, but the touchpad and keyboard don’t work.
I am sending you a pre-setup and post-setup diagnosis. You will be guided by the number, date and time in the file names.