I believe I'm plagued by the same bug (also followed bug 1717170, and posted on bugzilla). However, now I don't get a full crash, but a session kick-out. This issue happens on two separate Intel NUC setups, both connected to a 4K TV with a displayport->hdmi2.0 -adapter (the other one from Club3D, the other a built in adapter in Intel Skull Canyon NUC.
But all in all, this is now forcing me to suspend my computers before switching off the displays, otherwise my entire desktop is lost. I can't understand how this is not more common, however. An extremely annoying 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/1724557 Title: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale() Status in gnome-shell package in Ubuntu: Confirmed Bug description: Hi all, Originally I was reporting bug 1717170, about session crash after monitor disconnect/switch-off/input change on desktop PC and the bug was fixed according to bug tracker. But now, after gnome-shell and mutter update, the crash goes worse. Now it is not just session kick-out but complete crash. Same events can be used to reproduce the crash. This time also crash files was created. ProblemType: Crash DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu3 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Oct 18 13:52:07 2017 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell InstallationDate: Installed on 2017-09-11 (37 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170906) ProcCmdline: /usr/bin/gnome-shell SegvAnalysis: Segfault happened at: 0x7f475acbac30 <meta_logical_monitor_get_scale>: movss 0x38(%rdi),%xmm0 PC (0x7f475acbac30) ok source "0x38(%rdi)" (0x00000038) not located in a known VMA region (needed readable region)! destination "%xmm0" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: gnome-shell StacktraceTop: meta_logical_monitor_get_scale () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0 meta_window_wayland_get_geometry_scale () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0 meta_surface_actor_wayland_get_scale () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0 meta_surface_actor_wayland_sync_state () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0 ?? () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0 Title: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1724557/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

