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 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775945/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp