laptop with docking station hangs on purple boot screen if booted without dock
I'm using Ubuntu 14.04 and I'm updating my packages as often as possible.
Since the last update (posted some lines from the dpkg.log below) my laptop, which is usually attached to a docking station with two external monitors, only works if it is booted while in the dock.
When I boot the laptop without sitting in the dock, the screen of the laptop stays in the purple boot screen of ubuntu. If I put the laptop back into the dock, the two external monitors automatically display the login screen (the purple screen stays on the laptop's screen).
Also interesting: If the system is booted and the laptop is in the dock (output is shown on both screens), I can remove the laptop and the output switches to the laptop screen automatically.
Before those updates I was able to boot the laptop with or without being attached to the dock. Also it was no problem to plug it in and remove it from the dock while running. The system always automatically switched between the "laptop-only-mode" and the "dual-external-
Laptop HW:
Lenovo T420
Nvidia NVS 4200M / Intel HD 3000 (Optimus)
Here are some lines of the dpkg.log where I think they belong to the update which causes those problems:
2014-06-21 00:19:05 upgrade udev:amd64 204-5ubuntu20.2 204-5ubuntu20.3
2014-06-21 00:19:07 upgrade libudev1:i386 204-5ubuntu20.2 204-5ubuntu20.3
2014-06-21 00:19:08 upgrade libudev1:amd64 204-5ubuntu20.2 204-5ubuntu20.3
2014-06-21 00:19:08 upgrade libpam-
2014-06-21 00:19:09 upgrade systemd-
2014-06-21 00:19:10 upgrade libsystemd-
2014-06-21 00:19:10 upgrade libsystemd-
2014-06-21 00:19:11 upgrade libgudev-1.0-0:i386 1:204-5ubuntu20.2 1:204-5ubuntu20.3
2014-06-21 00:19:12 upgrade libgudev-
2014-06-21 00:19:12 upgrade libspectre1:amd64 0.2.7-2ubuntu1 0.2.7-2ubuntu1.1
2014-06-21 00:19:13 upgrade ubuntu-
2014-06-21 00:19:14 upgrade libsystemd-
2014-06-21 00:19:15 upgrade libcompizconfig
2014-06-21 00:19:15 upgrade compiz-
2014-06-21 00:19:16 upgrade compiz-gnome:amd64 1:0.9.11+
2014-06-21 00:19:17 upgrade compiz-
2014-06-21 00:19:18 upgrade libdecoration0:
2014-06-21 00:19:19 upgrade compiz-core:amd64 1:0.9.11+
2014-06-21 00:19:20 upgrade compiz:all 1:0.9.11+
2014-06-21 00:19:20 upgrade gir1.2-
2014-06-21 00:19:21 upgrade gnome-sudoku:all 1:3.10.2-0ubuntu3 1:3.10.2-0ubuntu3.1
2014-06-21 00:19:25 upgrade network-
2014-06-21 00:19:27 upgrade libnm-gtk0:amd64 0.9.8.8-0ubuntu4.1 0.9.8.8-0ubuntu4.2
2014-06-21 00:19:27 upgrade libnm-gtk-
2014-06-21 00:19:28 upgrade libtar0:amd64 1.2.20-3 1.2.20-3ubuntu0.1
2014-06-21 00:19:28 upgrade nvidia-common:amd64 1:0.2.91.5 1:0.2.91.6
2014-06-21 00:19:29 upgrade thunderbird-
2014-06-21 00:19:30 upgrade thunderbird-
2014-06-21 00:19:30 upgrade thunderbird:amd64 1:24.5.
2014-06-21 00:19:33 upgrade thunderbird-
2014-06-21 00:19:34 upgrade thunderbird-
2014-06-21 00:19:34 upgrade compiz-
2014-06-21 00:19:35 upgrade compiz-
2014-06-21 00:19:35 upgrade compizconfig-
2014-06-21 00:19:36 upgrade python-
2014-06-21 00:19:36 upgrade compizconfig-
Is this enough information for a bug report?
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