Thanks Daniel, the core file I got from the crash (in my home dir) shows as
core: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style, from '/usr/bin/Xwayland :0 -rootless -terminate -accessx -core -listen 4 -listen 5 -d', real uid: 1000, effective uid: 1000, real gid: 1000, effective gid: 1000, execfn: '/usr/bin/Xwayland', platform: 'x86_64' If I try to run "ubuntu-bug core" on it, I get a dialog saying that the problem cannot be reported because the core is about a snap published by Canonical. -- 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/1769981 Title: Temporary screen freeze when coming back from screen standby Status in gnome-shell package in Ubuntu: New Bug description: When waking up the PC screen from standby, quite often the screen freezes for 10-20s. I can't move the mouse or type anything. After a while, it unfreezes. This is quite annoying because often the freeze is long enough to send the screen to standby again for absence of singal, so then I have to wake it up and wait again. This is not 100% reproducible but happens very frequently, both when the screen is locked and when it's not. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-shell 3.28.1-0ubuntu2 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: GNOME Date: Tue May 8 20:26:27 2018 DisplayManager: gdm3 InstallationDate: Installed on 2018-02-25 (72 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180225) SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1769981/+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
