Brightness Control XPS 7590 (i7-9750H - UHD 630)

[ryniouz]

Guys I found a solution, I swapped my 4k OLED screen with an XPS 9560 4k LCD, and brightness control works now.

 

[topspindex]

is thunderbolt working on LuletterSoul's EFI?, my configuration is xps 15 7590, FHD, 16GB and 4GB, i7, WD SN759 500GB. Also I can't make IMessage work.