Thank you for reporting this bug to Ubuntu. Ubuntu 18.10 (cosmic) reached end-of-life on July 18, 2019.
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: xorg-server (Ubuntu) Status: Confirmed => Won't Fix -- 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/1811008 Title: Xwayland crashed with SIGSEGV in dixGetPrivate() from dixLookupPrivate() from present_screen_priv() from present_wnmd_flip() from present_wnmd_execute() from present_wnmd_event_notify() from xwl_present_events_notify() from xwl_present_timer_callback() Status in xorg-server package in Ubuntu: Won't Fix Bug description: I have some daisy-chained DisplayPort monitors connected via a DisplayPort KVM switch. This crash occurs at the moment the switch is switched "away" from host 1 to another host. Upon switching back to host 1, the gnome-session & gui processes have exited and the login screen is displayed. Makes it difficult to get much work done. ProblemType: Crash DistroRelease: Ubuntu 18.10 Package: xwayland 2:1.20.1-3ubuntu2.1 Uname: Linux 4.20.0-042000-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.10-0ubuntu13.1 Architecture: amd64 CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Jan 8 17:44:27 2019 DistUpgraded: 2018-10-25 13:46:36,654 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: cosmic DistroVariant: ubuntu ExecutablePath: /usr/bin/Xwayland ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Iris Pro Graphics 580 [8086:193b] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Iris Pro Graphics 580 [8086:2064] InstallationDate: Installed on 2016-10-05 (825 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) ProcCmdline: /usr/bin/Xwayland :0 -rootless -terminate -accessx -core -listen 4 -listen 5 -displayfd 6 ProcEnviron: LANGUAGE=en_CA:en PATH=(custom, user) XDG_RUNTIME_DIR=<set> LANG=en_CA.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.20.0-042000-generic root=/dev/mapper/ubuntu--vg-root ro splash crashkernel=512M-:192M vt.handoff=1 Signal: 6 SourcePackage: xorg-server StacktraceTop: ?? () ?? () ?? () ?? () ?? () Title: Xwayland crashed with SIGABRT UpgradeStatus: Upgraded to cosmic on 2018-10-25 (75 days ago) UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo wireshark dmi.bios.date: 05/16/2018 dmi.bios.vendor: Intel Corp. dmi.bios.version: KYSKLi70.86A.0055.2018.0516.1629 dmi.board.name: NUC6i7KYB dmi.board.vendor: Intel Corporation dmi.board.version: H90766-404 dmi.chassis.type: 3 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnIntelCorp.:bvrKYSKLi70.86A.0055.2018.0516.1629:bd05/16/2018:svn:pn:pvr:rvnIntelCorporation:rnNUC6i7KYB:rvrH90766-404:cvnIntelCorporation:ct3:cvr1.0: mtime.conffile..etc.apport.crashdb.conf: 2019-01-08T10:58:28.409903 version.compiz: compiz 1:0.9.13.1+18.10.20180930-0ubuntu1 version.libdrm2: libdrm2 2.4.95-1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.1-3ubuntu2.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.6-1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-3 xserver.bootTime: Mon Nov 5 11:41:45 2018 xserver.configfile: default xserver.errors: open /dev/dri/card0: No such file or directory open /dev/dri/card0: No such file or directory Screen 0 deleted because of no matching config section. xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.20.1-3ubuntu2.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1811008/+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

