Similar issues on my Dell M4800. Even worse for me is a serious security issue: sometimes, when laptop suspends at login screen and I hit power button on docking station to wake up from suspend, I see my Desktop without ever having to enter a username and password. This is obviously a serious problem.
for d in /dev/input/event*; do if ! sudo evtest --query $d EV_SW SW_DOCK; then echo $d; fi; done returns nothing. Journal.txt and monitors.txt attached ** Attachment added: "monitors.txt" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1450009/+attachment/4781644/+files/monitors.txt -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1450009 Title: [HP, Dell notebooks] suspends on closed lid, does not recognized external monitors/dock Status in systemd package in Ubuntu: Fix Released Bug description: Using systemd as init system on a HP zbook15 notebook having 2 external monitors connected using a docking station and starting with lid closed the system goes to sleep after successfully booting and starting lightdm greeter. Sometimes there's enough time to enter username and password but system goes to sleep every time after a few seconds. The system can be woken up and used after this happens but it will not let me shutdown later. The problem is just present in docked situation starting with closed lid using systemd a init system. If notebook is used in non-docked situation with open lid and systemd the problem does not occur. Workaround: A switch back to upstart as init system resolves the issue. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: systemd-sysv 219-7ubuntu3 ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 Uname: Linux 3.19.0-15-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 Date: Wed Apr 29 14:46:09 2015 InstallationDate: Installed on 2015-04-27 (1 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1450009/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp