Same issue, seems to only happen when external monitors are connected to the laptop (Thinkpad T460p with docking station). Xorg also experiences higher than normal CPU usage during those periods. Greeter itself seems to work at least partially (sluggish, text missing from error messages).
-- You received this bug notification because you are a member of LightDM Gtk+ Greeter Development Team, which is subscribed to lightdm-gtk- greeter in Ubuntu. https://bugs.launchpad.net/bugs/1509780 Title: High cpu usage when lightdm screenlock is active Status in lightdm-gtk-greeter package in Ubuntu: Confirmed Bug description: When my system ist going to screenlock the cpu usage goes to 100 percent and the fanspeed goes up. When i switch with STRG+ALT+F1 to a terminal before the screenlock ist active, the system works fine. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: lightdm 1.16.4-0ubuntu1 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 ApportVersion: 2.19.1-0ubuntu3 Architecture: amd64 CurrentDesktop: XFCE Date: Sun Oct 25 11:08:38 2015 EcryptfsInUse: Yes LightdmGreeterLog: ** Message: Starting lightdm-gtk-greeter 2.0.1 (Aug 7 2015, 01:24:18) ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/01_ubuntu.conf ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/30_xubuntu.conf upstart: indicator-application-main-Prozess (1164) wurde mit dem Status 1 beendet LightdmGreeterLogOld: ** Message: Starting lightdm-gtk-greeter 2.0.1 (Aug 7 2015, 01:24:18) ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/01_ubuntu.conf ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/30_xubuntu.conf upstart: indicator-application-main-Prozess (1074) wurde von TERM-Signal beendet upstart: indicator-messages-main-Prozess (1072) wurde von TERM-Signal beendet SourcePackage: lightdm UpgradeStatus: Upgraded to wily on 2015-10-10 (15 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1509780/+subscriptions -- Mailing list: https://launchpad.net/~lightdm-gtk-greeter-team Post to : lightdm-gtk-greeter-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~lightdm-gtk-greeter-team More help : https://help.launchpad.net/ListHelp
