Try this as a workaround: edit /etc/gdm3/custom.conf and uncomment the line:
#WaylandEnable=false
Then reboot. If that works then this is a duplicate of bug 1798790.
Try this as a workaround: edit /etc/gdm3/ custom. conf and uncomment the line:
#WaylandEnab le=false
Then reboot. If that works then this is a duplicate of bug 1798790.