apport information ** Tags added: apport-collected
** Description changed: I have been experiencing an issue only since a week or so, which I have reportedly also heard from a colleague of mine (2018 Dell XPS 13) since much longer. My hardware is a Lenovo Thinkpad L480 with i5-8250u. When using stock ubuntu 18.04.1, sometimes and sporadically (1 out of 3 or so) after resuming from suspend, the screen would not be locked and flicker, switching between a fully black screen and the previously (before going to standby) displayed content, which I regard as a security issue. The GUI is not responsive, however I can workaround using ctrl-alt-F1 and login using my password to "semi"-restore functionality. The flickering is then gone, but e.g. the dock doesn't respond correctly and my notifications are missing, until I restart gnome-shell. This then leaves me with a fully functional system again, which is why I have not regarded my issue the same as other bug reports, which report a system freeze. I have tried using gnome-session instead of ubuntu-session for the past day as of writing this report and have NOT yet experienced the issue again, so I assume it has something to do with ubuntu's theme or alike. - Please provide information which log files could be helpful and I am - going to try and reproduce the issue on ubuntu-session. + Please provide information which log files could be helpful and I am going to try and reproduce the issue on ubuntu-session. + --- + ProblemType: Bug + ApportVersion: 2.20.9-0ubuntu7.5 + Architecture: amd64 + CurrentDesktop: ubuntu:GNOME + DisplayManager: gdm3 + DistroRelease: Ubuntu 18.04 + InstallationDate: Installed on 2019-01-03 (20 days ago) + InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) + Package: gnome-shell 3.28.3-0ubuntu0.18.04.4 + PackageArchitecture: amd64 + ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18 + Tags: bionic + Uname: Linux 4.15.0-43-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True ** Attachment added: "Dependencies.txt" https://bugs.launchpad.net/bugs/1813139/+attachment/5232095/+files/Dependencies.txt -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1813139 Title: Screen unlocked after resume, black flickering To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1813139/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
