FastX displays a black screen on Ubuntu

https://www.starnet.com/help/fastx-displays-a-black-screen-on-ubuntu/

Solution

Disable Wayland on Ubuntu

Locate the correct configuration file for your OS. This is one of /etc/gdm3/custom.conf (Ubuntu) or /etc/gdm/custom.conf (CentOS/RHEL)
Open the file with sudo/root privileges
Uncomment WaylandEnable=false by deleting the # at the beginning of the line
    Alternatively, run the below command:
    Ubuntu: sudo sed -i 's/^#.*WaylandEnable=.*/WaylandEnable=false/' /etc/gdm3/custom.conf
    RHEL: sudo sed -i 's/^#.*WaylandEnable=.*/WaylandEnable=false/' /etc/gdm/custom.conf
Reboot

Updated: