The log is printed by the '$ journalctl' command, you can look around the time when you had the issue?
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1851824 Title: gnome shell freezes when too many notifications appear Status in gnome-shell package in Ubuntu: Incomplete Bug description: I'm using 20.04. When I receive some notifications immediately one after the other, the shell sometimes freezes. I usually make it start again moving to a vt and doing `killall -3 gnome-shell`. This makes it work again (except it makes some apps like PyCharm and Chrome to crash). ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-shell 3.34.1+git20191024-1ubuntu1 ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1 Uname: Linux 5.3.0-19-generic x86_64 ApportVersion: 2.20.11-0ubuntu9 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Nov 8 13:26:49 2019 DisplayManager: gdm3 InstallationDate: Installed on 2019-02-03 (277 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) RelatedPackageVersions: mutter-common 3.34.1+git20191107-1ubuntu1 SourcePackage: gnome-shell UpgradeStatus: Upgraded to focal on 2019-07-21 (109 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1851824/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
