This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1775945
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1775945
Title:
Lenovi X1 Carbon regularly has frozen lock- or dark screen after
closing lid
Status in linux package in Ubuntu:
Incomplete
Bug description:
I was running ubuntu 17.10 for months with no issues. After upgrading to
18.04, closing the lid regularly (but not always) results in either:
1. The display staying on with a frozen lock-screen, or
2. The display powered off, but the notebook still powered on.
In both cases the notebook does not respond. A five-second press of
the power button to hard-reboot the computer is the only means of
recovery.
After powering the notebook back on, there are no files in /var/crash.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-22-generic 4.15.0-22.24
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Jun 9 00:00:48 2018
InstallationDate: Installed on 2018-06-02 (6 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)
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