You have been subscribed to a public bug:
After upgrading to the current kernel (4.4.0-34-generic) I am not able
to log in to my Kubuntu 16.04 at a Lenovo T430 while it is mounted to a
docking station.
Ubuntu boots until I need to enter the passphrase for my crypted disk,
but anyhow the system then enters a sleep state (small moon icon is
blinking). Inside the docking station I am not able to leave that state.
Outside the docking station the problem doesn't occur.
While using the 4.4.0-31-generic kernel, everything works fine.
I am not sure how to debug that behavior, so if some more information is
needed please leave me a note.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Aug 9 10:31:09 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-05-12 (88 days ago)
InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug kubuntu xenial
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entering crypto passphrase while notebook is mounted to docking station results
in sleep state
https://bugs.launchpad.net/bugs/1611283
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