Symptom persists also with WaylandEnable=false in /etc/gdm3/custom.conf Removing "splash" in /etc/default/grub solves the problem (as stated before)
Computer: DELL Notebook Precision 7520 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1872159 Title: booting with splash hangs when external monitors are connected To manage notifications about this bug go to: https://bugs.launchpad.net/plymouth/+bug/1872159/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs