The machine is stuck in recovery mode, according to the kernel command line:
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.17.0-041700rc3-generic root=UUID=63fcbd04 -ec8b-462c-ba66-4f45c229353c ro recovery nomodeset To fix this, you need to reboot and then press Esc as soon as the purple screen appears. Now select the proper kernel that is not recovery mode. ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1801716 Title: Xorg freeze (black screen after ubuntu logo during boot) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801716/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp