Thank you for reporting this bug to Ubuntu. Ubuntu 17.10 (artful) reached end-of-life on July 19, 2018.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed. ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- 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/1727902 Title: gnome-shell crashed with signal 5 in __GI___poll() from g_main_context_poll() from g_main_context_iterate() from g_main_loop_run() Status in gnome-shell package in Ubuntu: Incomplete Bug description: How I was able to recreate the crash multiple times: 1. Login 2. Open terminal, run sudo nautilus --> I get this error : Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect: Connection refused (nautilus:4129): Gtk-WARNING **: cannot open display: :0 3. Run su, login and run nautilus 4. Navigate to /opt/<some app folder> 5. Open a file and close it 6. Copy that file to my non root desktop (/home/hiruna/Desktop in my case) 7. Open the file normally from the non root user --> Immediate freeze ProblemType: Crash DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu5 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: Fri Oct 27 12:32:17 2017 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell InstallationDate: Installed on 2017-05-24 (155 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcCmdline: /usr/bin/gnome-shell ProcEnviron: LANGUAGE=en_AU:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_AU.UTF-8 SHELL=/bin/bash Signal: 5 SourcePackage: gnome-shell StacktraceTop: __GI___poll (fds=0x55811f323800, nfds=16, timeout=2771) at ../sysdeps/unix/sysv/linux/poll.c:29 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 meta_run () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0 ?? () Title: gnome-shell crashed with signal 5 in __GI___poll() UpgradeStatus: Upgraded to artful on 2017-10-19 (7 days ago) UserGroups: adm cdrom dialout dip input lpadmin plugdev sambashare sudo video To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1727902/+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

