I don't think it's quite the same issue as 833 upstream, though the symptoms are similar.
I disabled GLX and it didn't change any symptoms, which I think it would if it were the same as 833 (?). I did see a similar issue reported on Arch where the symptoms only occurred when a USB C monitor was attached, and were fixed after an Arch update (but lost the URL when X crashed; I'll share if I find it again). It's not entirely consistent when it happens, but I can use Terminal, Emacs and Hexchat without a crash but Firefox or Chromium or VSCode will typically trigger a crash within a few minutes (even if they're running solely on the primary screen). When Chromium restarts after a crash and reopens it's windows on the second screen that will reliably cause an immediate crash. The next time it's restarted Chromium restores it's windows all on the primary screen, and that doesn't cause a crash. I've got gdb backtraces from several crashes, and they're all consistent. I've attached one (gdb-backtrace.txt). ** Attachment added: "gdb-backtrace.txt" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1853120/+attachment/5306475/+files/gdb-backtrace.txt -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1853120 Title: Xorg crashes with a bus error in OsLookupColor when using a second display Status in xorg package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1853120/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
