I have a ASUS Tuf-gaming laptop AMD Ryzen 5 with vega 8 gpu and Nvidia card. The AMD stuff works fine but I am having an issue with the synchronizing between the two cards. It just doesn't handoff to the NVidia card
When testing the card I set the Nvidia card to boot as primary and when I reboot I get a blank screen. it can't detect the laptop screen.
If using an external monitor it works and lightdm shows on the monitor. Once I log in everything my user account settings take over and it returns to the laptop screen as primary because I have already set using Mate display settings.
Has anyone had an experience with this? I currently have xorg.conf files galore.
If you do a search on this forum or DDG you will find a plethora of solutions to your issues. being they are vast, please post inxi -Fxxz and this will give others more information to help.