** Summary changed:

- gnome-shell crashed with SIGSEGV in meta_gpu_kms_apply_crtc_mode()
+ gnome-shell crashed with SIGSEGV in meta_gpu_kms_apply_crtc_mode() from 
meta_renderer_native_finish_frame()

** Information type changed from Private to Public

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https://bugs.launchpad.net/bugs/1754949

Title:
  gnome-shell crashed with SIGSEGV in meta_gpu_kms_apply_crtc_mode()
  from meta_renderer_native_finish_frame()

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  The crash was reported after booting and logging in to an X.Org
  session.

  $ lsb_release -rd
  Description:  Ubuntu Bionic Beaver (development branch)
  Release:      18.04

  $ apt-cache policy gnome-shell
  gnome-shell:
    Instalovaná verze: 3.27.92-0ubuntu1
    Kandidát:          3.27.92-0ubuntu1
    Tabulka verzí:
   *** 3.27.92-0ubuntu1 500
          500 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: gnome-shell 3.27.92-0ubuntu1
  ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
  Uname: Linux 4.15.0-10-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  CurrentDesktop: GNOME-Greeter:GNOME
  Date: Sun Mar 11 11:08:00 2018
  DisplayManager: gdm3
  ExecutablePath: /usr/bin/gnome-shell
  GsettingsChanges:
   
  InstallationDate: Installed on 2017-12-19 (81 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  ProcCmdline: /usr/bin/gnome-shell
  ProcEnviron:
   LANGUAGE=cs_CZ
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=cs_CZ.UTF-8
   SHELL=/bin/false
  SegvAnalysis:
   Segfault happened at: 0x7f3fee5d2f17 <meta_gpu_kms_apply_crtc_mode+215>:     
mov    0x20(%rax),%rcx
   PC (0x7f3fee5d2f17) ok
   source "0x20(%rax)" (0x00000020) not located in a known VMA region (needed 
readable region)!
   destination "%rcx" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: gnome-shell
  StacktraceTop:
   meta_gpu_kms_apply_crtc_mode () at /usr/lib/x86_64-linux-gnu/libmutter-2.so.0
   meta_renderer_native_finish_frame () at 
/usr/lib/x86_64-linux-gnu/libmutter-2.so.0
   () at /usr/lib/x86_64-linux-gnu/mutter/libmutter-clutter-2.so
   () at /usr/lib/x86_64-linux-gnu/mutter/libmutter-clutter-2.so
   () at /usr/lib/x86_64-linux-gnu/mutter/libmutter-clutter-2.so
  Title: gnome-shell crashed with SIGSEGV in meta_gpu_kms_apply_crtc_mode()
  UpgradeStatus: Upgraded to bionic on 2018-03-05 (5 days ago)
  UserGroups:

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