I've already got apport configured to report everything (i.e., I've already done the workaround suggested in bug 994921), and there is no crash either in /var/crash or on https://errors.ubuntu.com. I don't think a crash is what's happening here.
Additional data: * If, after I've woken up my laptop and the screen is blank, I put it back in the dock with the lid closed, the dock's two monitors come alive just fine. * If I then open the laptop lid, the monitors reconfigure themselves and I correctly end up with both the two monitors and the laptop screen all live. * Ditto if I then close the lid -- the displays reconfigure themselves and only the two dock monitors are enabled. * If I temporarily disable the udev script that causes the laptop to go to sleep automatically when I undock it, then when I undock it and open the lid the screen comes on just fine. * When the screen is in the off-but-should-be-on state I've reported here, Ctrl-Alt-F* doesn't switch to a different VTY. * This problem happens _almost_ every time I undock, but not every time. I've tried it seven or eight times, and one of those times, the screen came on properly when I woke the laptop by opening the lid. All the other times the screen never came on until I either power-cycled or put the laptop back in the dock. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1802574 Title: laptop screen never comes on after undock / sleep / open of laptop Status in gnome-shell package in Ubuntu: Incomplete Bug description: I use a ThinkPad dock with two monitors plugged into it. I have a udev job configured to automatically put my laptop to sleep when I undock it. So, I'm working on my laptop in the dock. I undock it and drop it into my backpack. All by itself, it goes to sleep. A few minutes later, I open the laptop and it wakes up. I know it's up because the power light and LED on the lid both go to solid. But the laptop screen never comes on. I've undocked twice since upgrading to 18.10. This has happened both times. It's a regression from 18.04.1. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: gnome-shell 3.30.1-2ubuntu1 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Nov 9 13:18:04 2018 DisplayManager: gdm3 InstallationDate: Installed on 2018-09-27 (43 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) SourcePackage: gnome-shell UpgradeStatus: Upgraded to cosmic on 2018-11-08 (1 days ago) modified.conffile..etc.apport.crashdb.conf: [modified] mtime.conffile..etc.apport.crashdb.conf: 2018-10-04T06:36:50.792292 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1802574/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
