I've been informed that this is a duplicate of 1805873 and that further communication about this bug should happen in this thread. I am able to reproduce this bug with a specific series of steps. Here's what I know:
--- I have a laptop and docking station with 2 displays attached. I can trigger a crash of the Xorg desktop by the following series of steps. Actual Behavior: 1. While the laptop is on the dock, put it to sleep 2. Pick up the laptop from the dock 3. Wake up the laptop while undocked 4. Use xrandr commands to adjust the laptops screen so it is the primary display 5. Put the laptop back to sleep 6. Re-dock the laptop 7. Wake up the laptop on the dock 8. Observe that Xorg has crashed, desktop state is lost, and the laptop has returned to the login screen. Expected Behavior: These is no combination of docking, sleeping, or xrandr display commands that can crash my X session and drop my laptop back to the login screen. Notes on Timing of this Issue: I've been living with this issue for many months, but it's only recently that I've realized that I can trigger it 100% of the time by running xrandr commands while undocked, then re-docking. This pattern is common if you use your laptop for work, taking it back and forth between the dock and various meeting rooms, then back to the dock again. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1787332 Title: Xorg crashed with SIGABRT in OsAbort() from AbortServer() from FatalError() from xf86VTEnter() from systemd_logind_vtenter() Status in xorg-server package in Ubuntu: Confirmed Bug description: . ProblemType: Crash DistroRelease: Ubuntu 18.10 Package: xserver-xorg-core 2:1.19.6-1ubuntu4 ProcVersionSignature: Ubuntu 4.17.0-6.7-generic 4.17.9 Uname: Linux 4.17.0-6-generic x86_64 ApportVersion: 2.20.10-0ubuntu7 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CurrentDesktop: ubuntu:GNOME Date: Thu Aug 16 14:15:46 2018 DistUpgraded: Fresh install DistroCodename: cosmic DistroVariant: ubuntu ExecutablePath: /usr/lib/xorg/Xorg ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation HD Graphics 630 [8086:5912] (rev 04) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 630 [17aa:3102] InstallationDate: Installed on 2018-05-26 (81 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64 (20180525) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 17ef:6009 Lenovo ThinkPad Keyboard with TrackPoint Bus 001 Device 003: ID 045e:0047 Microsoft Corp. IntelliMouse Explorer 3.0 Bus 001 Device 002: ID 8087:0a2b Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 10M7CTO1WW ProcCmdline: /usr/lib/xorg/Xorg vt1 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -background none -noreset -keeptty -verbose 7 -core ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_AU.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.17.0-6-generic root=UUID=d7ecc709-02c2-4413-b7e7-dfce1d2b3703 ro quiet splash vt.handoff=1 Signal: 6 SourcePackage: xorg-server StacktraceTop: () () () xf86VTEnter () () Title: Xorg crashed with SIGABRT UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 02/06/2018 dmi.bios.vendor: LENOVO dmi.bios.version: M16KT47A dmi.board.name: 3102 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN 3259627060530 dmi.chassis.type: 3 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrM16KT47A:bd02/06/2018:svnLENOVO:pn10M7CTO1WW:pvrThinkCentreM710s:rvnLENOVO:rn3102:rvrSDK0J40709WIN3259627060530:cvnLENOVO:ct3:cvrNone: dmi.product.family: ThinkCentre M710s dmi.product.name: 10M7CTO1WW dmi.product.version: ThinkCentre M710s dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.93-1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.1.5-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.1.5-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1787332/+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
