Public bug reported: We cannot login via lightdm if we wait too long after boot:
Cursor in password input field stops blinking and if user inputs password anyways, then pc freezes. No switcht go VT or login via ssh possible. Only magic sysreq helps for rebooting. When user switches to a virtual terminal via ctrl-alt-F(1..6) and back into gui, then the cursor is blinking again and everything is normal. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-63.84-generic 4.4.44 Uname: Linux 4.4.0-63-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 Date: Fri Apr 7 08:57:59 2017 ProcEnviron: TERM=linux PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug freeze xenial -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1680726 Title: Xorg.freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1680726/+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