Comment 15 for bug 1720438

Ok tried several graphical environments with the line "WaylandEnable=false" commented and uncommented, and the proprietary nvidia graphics driver, and those are the results:

- Desktop Session: Ubuntu: Fn to control screen backlight doesn't work in any case, neither line enabled nor disabled.

- Desktop Session: Ubuntu on Wayland (Wayland): can't even enter to the desktop in either case. After entering the password for my username the screen goes black a few seconds and then returns to the login manager.

- Desktop Session: Plasma: Fn + up arrrow /down arrow work perfectly in both cases, with line enabled or disabled. I recommend everyone to use KDE Plasma instead.