GDM doesn't activate display
I installed Fedora 29 on a notebook with dual graphics (Intel UHD 630/Nvidia Quadro P100) in dedicated mode (so only the Quadro P100 is used), because it was not possible to install Fedora with dual graphics. After an update this works fine with a few exception e.g. Android emulator crashes.
When I switch back to dual graphics that works until GDM. I can login, but the screen of my notebook stays black. On a dual screen configuration the second monitor works, this is only a problem with the notebook screen.