uninstalling the xserver-xorg-video-intel did not help. the output of tail -f /var/log/kern.log during the switch from graphics to linux console is in the attachment.
** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1789258/+attachment/5181635/+files/1 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1789258 Title: drm:drm_atomic_helper_wait_for_dependencies flip_done timed out To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1789258/+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