This happened to me again today after an update of Kubuntu Vivid on my laptop. At next boot, sddm would not start, and "sudo systemctl enable sddm" / "sudo reboot" fixed it.
This happened to me again today after an update of Kubuntu Vivid on my laptop.
At next boot, sddm would not start, and "sudo systemctl enable sddm" / "sudo reboot" fixed it.