** Summary changed:

- Xorg crashes with a bus error in OsLookupColor when using a second display
+ Xorg crashes with SIGBUS in drmmode_load_cursor_argb_check

** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu)

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https://bugs.launchpad.net/bugs/1853120

Title:
  Xorg crashes with SIGBUS in drmmode_load_cursor_argb_check

Status in xorg-server package in Ubuntu:
  Confirmed

Bug description:
  https://errors.ubuntu.com/problem/af88d9cd45acf4632e47789e4661be6a47b4dbf1

  ---

  I'm using a Dell XPS 9380 ("developer edition") connected to an
  external monitor via USB C.

  I've been running Ubuntu 19.04 for months with an external monitor
  with no issues. On upgrading to 19.10 xorg crashes with a bus error
  within a few seconds or minutes of using the external monitor.

  The xorg package installed is 1:7.7+19ubuntu12

  The system is stable without the external monitor.

  The crash is consistently repeatable and the stack trace looks very
  similar each time.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: xorg 1:7.7+19ubuntu12
  ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7
  Uname: Linux 5.3.0-23-generic x86_64
  ApportVersion: 2.20.11-0ubuntu8.2
  Architecture: amd64
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  Date: Tue Nov 19 09:50:40 2019
  DistUpgraded: 2019-11-17 14:04:28,024 ERROR got error from PostInstallScript 
./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process 
“./xorg_fix_proprietary.py” (No such file or directory) (8))
  DistroCodename: eoan
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation UHD Graphics 620 (Whiskey Lake) [8086:3ea0] (prog-if 00 
[VGA controller])
     Subsystem: Dell UHD Graphics 620 (Whiskey Lake) [1028:08af]
  InstallationDate: Installed on 2019-07-09 (132 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 
(20190210)
  MachineType: Dell Inc. XPS 13 9380
  ProcEnviron:
   LANGUAGE=en_IE:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_IE.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-23-generic 
root=UUID=6b08154b-c421-45b7-bc75-c4feccc18654 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to eoan on 2019-11-17 (1 days ago)
  dmi.bios.date: 10/01/2019
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.8.0
  dmi.board.name: 088MRW
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.8.0:bd10/01/2019:svnDellInc.:pnXPS139380:pvr:rvnDellInc.:rn088MRW:rvrA00:cvnDellInc.:ct10:cvr:
  dmi.product.family: XPS
  dmi.product.name: XPS 13 9380
  dmi.product.sku: 08AF
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.99-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.1-1ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.1-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20191008-0ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20190815-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

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