Closing this bug that I did not see again since my initial report.
** Changed in: x11-utils (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to x11-utils in Ubuntu. https://bugs.launchpad.net/bugs/1720360 Title: xwininfo crashed with SIGSEGV in Select_Window() Status in x11-utils package in Ubuntu: Fix Released Bug description: I was trying a GNOME Wayland session and was using xwininfo to tell which windows where using XWayland and which windows where using Wayland. At first it worked well but after a few uses it crashed and I could not use it any longer (it could not grab the input). ProblemType: Crash DistroRelease: Ubuntu 17.10 Package: x11-utils 7.7+3build1 ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3 Uname: Linux 4.13.0-12-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.7-0ubuntu1 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus] CompositorRunning: None CurrentDesktop: GNOME Date: Fri Sep 29 15:06:22 2017 DistUpgraded: 2017-09-29 12:50:04,977 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: artful DistroVariant: ubuntu EcryptfsInUse: Yes ExecutablePath: /usr/bin/xwininfo GconfCompiz: /apps/compiz-1/general: /apps/compiz-1/general/screen0: /apps/compiz-1/general/screen0/options: active_plugins = [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus] GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell 2nd Generation Core Processor Family Integrated Graphics Controller [1028:0494] MachineType: Dell Inc. Latitude E6520 ProcCmdline: xwininfo ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-12-generic root=UUID=749a9901-bdd3-4b5f-b80e-69414667e058 ro enable_mtrr_cleanup mtrr_spare_reg_nr=1 mtrr_gran_size=32M mtrr_chunk_size=128M quiet splash vt.handoff=7 SegvAnalysis: Segfault happened at: 0x5620e67abc67: movzbl (%rax),%edx PC (0x5620e67abc67) ok source "(%rax)" (0x00000000) not located in a known VMA region (needed readable region)! destination "%edx" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: x11-utils StacktraceTop: ?? () ?? () __libc_start_main (main=0x5620e67a9610, argc=1, argv=0x7fffb2ac4b58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb2ac4b48) at ../csu/libc-start.c:308 ?? () Title: xwininfo crashed with SIGSEGV in __libc_start_main() UpgradeStatus: Upgraded to artful on 2017-09-29 (0 days ago) UserGroups: adm cdrom dip fuse libvirt libvirtd lpadmin plugdev sambashare staff sudo dmi.bios.date: 11/14/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A19 dmi.board.name: 0NVF5K dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA19:bd11/14/2013:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0NVF5K:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6520 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.13.1+17.10.20170901-0ubuntu1 version.libdrm2: libdrm2 2.4.82-1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.1-0ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.1-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.3-1ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.9.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1 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/x11-utils/+bug/1720360/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp