The bug seems to have "gone away" when using a DVD of an early March beta version of Focal Fossa 20.04. It boots very happily with no obvious display problems.
Sorry that I could not track down exactly what the problem was.
The bug seems to have "gone away" when using a DVD of an early March beta version of Focal Fossa 20.04. It boots very happily with no obvious display problems.
Sorry that I could not track down exactly what the problem was.