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:
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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Lenovi X1 Carbon regularly has frozen lock- or dark screen after
Status in linux package in Ubuntu:
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
After powering the notebook back on, there are no files in /var/crash.
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
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)
UpgradeStatus: No upgrade log present (probably fresh install)
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