KDE Connect presentation remote pointer is broken

[LunarEclipse363]

So basically, the expected behavior is that you get an overlay over your screen that has the funny shiny circle you control by moving your phone around while holding a button.

On niri this instead creates a new black fullscreen window, by tweaking window rules I only got it to be transparent and sit besides other windows.

https://github.com/user-attachments/assets/763226d5-add7-48b8-a13a-3ec6bb70a769

I'm guessing this is a clash of "kdeconnect assumes it can overlay a normal window above everything else" versus niri's "windows can never overlap eachother" paradigm.

System Information

• niri version: niri 0.1.9 (unknown commit)

• Distro: Arch Linux

• GPU: (integrated)

• CPU: AMD Ryzen 7 4800H

[YaLTeR]

Well, KDE connect cannot assume this on Wayland, not only on niri but on other compositors too. In fact, on Wayland the compositor is expected to render a fullscreen window on black background with no other windows visible. And a maximized window cannot render above the GNOME Shell top bar for example, or above top-layer layer-shell panels on other compositors.

Instead, KDE connect could use a fullscreen layer-shell surface on the overlay layer which would do very close to what it wants.