Public bug reported: I hit <Super>p by accident. I'll be removing the keybinding now I found it, in org.gnome.mutter.keybindings switch-monitor. It's too common a keystroke I hit when working under macOS that I'm just too likely to hit it by accident. But that's my problem.
But it wouldn't be a problem if it didn't crash the system. When I do so, the overlay comes up offering Mirror, Join, External-only, Internal- only options, then the screens blank for a moment, and when they come back, the desktop is completely frozen and unresponsive. Including the pointer, which is immovable. My setup is running a Gnome/Wayland session using nvidia-387 drivers (which apart from this is working perfectly!) I have two monitors, but they're different resolutions, and are currently set to different scaling factors (hence trying so hard to run Wayland on nVidia). I see this in syslog from just before the crash: Oct 5 16:17:12 fleetfoot gnome-shell[1757]: Failed to apply DRM plane transform 0: Invalid argument Oct 5 16:17:12 fleetfoot gnome-shell[1757]: Failed to apply DRM plane transform 0: Invalid argument Oct 5 16:17:12 fleetfoot gnome-shell[1757]: Ignoring length property that isn't a number at line 732, col 24 Oct 5 16:17:12 fleetfoot gnome-shell[1757]: message repeated 2 times: [ Ignoring length property that isn't a number at line 732, col 24] Oct 5 16:17:26 fleetfoot gnome-shell[1757]: [AppIndicatorSupport-FATAL] unable to lookup icon for state-ok ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@Oct 5 16:18:43 fleetfoot rsyslogd: [origin software="rsyslogd" swVersion="8.16.0" x-pid="940" x-info="http://www.rsyslog.com";] start ... and then I hit reset. It was unresponsive. I tried it again, and saw something slightly different. The one thing in common seems to be the gnome-shell "Failed to apply DRM plane transform 0: Invalid" messages. Oct 5 16:19:11 fleetfoot dbus-daemon[1652]: Activating via systemd: service name='org.gtk.vfs.Metadata' unit='gvfs-metadata.service' Oct 5 16:19:11 fleetfoot systemd[1638]: Starting Virtual filesystem metadata service... Oct 5 16:19:11 fleetfoot dbus-daemon[1652]: Successfully activated service 'org.gtk.vfs.Metadata' Oct 5 16:19:11 fleetfoot systemd[1638]: Started Virtual filesystem metadata service. Oct 5 16:19:11 fleetfoot com.intel.dleyna-renderer[1652]: namespace error : xmlns:ms: ' urn:microsoft-com:wmc-1-0' is not a valid URI Oct 5 16:19:11 fleetfoot com.intel.dleyna-renderer[1652]: xmlns:ms=" urn:microsoft-com:wmc-1-0" Oct 5 16:19:11 fleetfoot com.intel.dleyna-renderer[1652]: ^ Oct 5 16:19:11 fleetfoot dleyna-renderer-service[2319]: New media server /com/intel/dLeynaRenderer/server/0 Oct 5 16:19:14 fleetfoot gnome-shell[1702]: Failed to apply DRM plane transform 0: Invalid argument Oct 5 16:19:14 fleetfoot gnome-shell[1702]: Failed to apply DRM plane transform 0: Invalid argument Oct 5 16:19:14 fleetfoot gnome-shell[1702]: Ignoring length property that isn't a number at line 732, col 24 Oct 5 16:19:14 fleetfoot gnome-shell[1702]: Ignoring length property that isn't a number at line 732, col 24 Oct 5 16:19:14 fleetfoot gsd-a11y-keyboa[1923]: The program 'gsd-a11y-keyboard' received an X Window System error.#012This probably reflects a bug in the program.#012The error was 'BadRRCrtc (invalid Crtc parameter)'.#012 (Details: serial 178 error_code 148 request_code 140 (RANDR) minor_code 20)#012 (Note to programmers: normally, X errors are reported asynchronously;#012 that is, you will receive the error a while after causing it.#012 To debug your program, run it with the GDK_SYNCHRONIZE environment#012 variable to change this behavior. You can then get a meaningful#012 backtrace from your debugger if you break on the gdk_x_error() function.) Oct 5 16:19:14 fleetfoot kernel: [ 35.456063] do_trap: 20 callbacks suppressed Oct 5 16:19:14 fleetfoot kernel: [ 35.456065] traps: gsd-a11y-keyboa[1923] trap int3 ip:7f6e22471921 sp:7ffd7f3536b0 error:0 in libglib-2.0.so.0.5400.0[7f6e22421000+111000] Oct 5 16:19:16 fleetfoot gnome-session[1654]: gnome-session-binary[1654]: WARNING: Application 'org.gnome.SettingsDaemon.A11yKeyboard.desktop' killed by signal 5 Oct 5 16:19:16 fleetfoot gnome-session-binary[1654]: WARNING: Application 'org.gnome.SettingsDaemon.A11yKeyboard.desktop' killed by signal 5 ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@Oct 5 16:19:40 fleetfoot rsyslogd: [origin software="rsyslogd" swVersion="8.16.0" x-pid="857" x-info="http://www.rsyslog.com";] start Oct 5 16:19:40 fleetfoot rsyslogd: rsyslogd's groupid changed to 108 Oct 5 16:19:40 fleetfoot rsyslogd: rsyslogd's userid changed to 104 (And then I hit the reset button. I'm afraid I lost patience and didn't go looking for another machine to ssh in from.) ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: mutter 3.26.0+20170925~ea214fb-1ubuntu1 ProcVersionSignature: Ubuntu 4.13.0-14.15-generic 4.13.4 Uname: Linux 4.13.0-14-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.7-0ubuntu2 Architecture: amd64 CurrentDesktop: GNOME Date: Thu Oct 5 16:31:45 2017 InstallationDate: Installed on 2017-07-30 (66 days ago) InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412) SourcePackage: mutter UpgradeStatus: Upgraded to artful on 2017-08-22 (44 days ago) ** Affects: mutter (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug artful wayland-session -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1721577 Title: switch monitor configurations crash-freezes desktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1721577/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
