Ubuntu – Ubuntu 16.04 progress dots remain flashing in centre of screen after successful boot


Ubuntu 16.04. Boots successfully with Ubuntu logo with five progress dots under logo changing from white to red. Ubuntu logo disappears, boot is successful but the five progress dots remain, flashing in sequence. I have turned the grid off in Tweak to no avail.
No new programs installed, all updates installed. Only started doing this two or three days ago.

Best Answer

I removed nomodeset from after quiet splash, and it seems to have fixed it.