Stephen Eisenhauer, thank you for reporting this and helping make Ubuntu better.
As per http://support.lenovo.com/us/en/products/laptops-and- netbooks/thinkpad-t-series-laptops/thinkpad-t540p an update to your computer's buggy and outdated BIOS is available (2.21). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything? If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible, and the information above is provided, then please mark this report Status New. Otherwise, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-2.21 ** Changed in: xorg (Ubuntu) Importance: Undecided => Low ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1516822 Title: Xorg crashes with segmentation fault Status in xorg package in Ubuntu: Incomplete Bug description: 1) Release information: $ lsb_release -rd Description: Ubuntu 15.10 Release: 15.10 2) Package version information 15:26:38-stephen~$ apt-cache policy xserver-xorg xserver-xorg: Installed: 1:7.7+7ubuntu4 Candidate: 1:7.7+7ubuntu4 Version table: *** 1:7.7+7ubuntu4 0 500 http://us.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages 100 /var/lib/dpkg/status 15:27:08-stephen~$ apt-cache policy xserver-xorg-core xserver-xorg-core: Installed: 2:1.17.2-1ubuntu9 Candidate: 2:1.17.2-1ubuntu9 Version table: *** 2:1.17.2-1ubuntu9 0 500 http://us.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages 100 /var/lib/dpkg/status 15:27:11-stephen~$ apt-cache policy xserver-xorg-video-intel xserver-xorg-video-intel: Installed: 2:2.99.917+git20150808-0ubuntu4 Candidate: 2:2.99.917+git20150808-0ubuntu4 Version table: *** 2:2.99.917+git20150808-0ubuntu4 0 500 http://us.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages 100 /var/lib/dpkg/status 3) What you expected to happen Xorg never crashes due to segfaults. 4) What happened instead Xorg crashes due to segfaults. I have recently seen an increase in unexpected X crashes while using my machine, sending me back to the login screen and losing the state of my open applications. I use a ThinkPad T540p with Intel graphics and Ubuntu 15.10 (upgraded from 15.04). I use Xrandr to configure and position my external and internal displays, including the use of the --panning/--scale/--dpi options to help my external display behave more like my internal HiDPI display (in case that's relevant to this problem). I heavily use PhpStorm, a JetBrains IDE from their IDEA family built in Java. The last two times this crash has happened to me (Friday and today), I was interacting with the IDE at the time. I saved a copy of Xorg.0.log.old both times and will attempt to attach both to this report (their backtraces differ a bit). During the first crash I believe I was simply interacting with the UI in some way; During the second crash, I had just clicked the window decoration's "X" button to close PhpStorm. Please let me know if there's something I can do to help diagnose the crash further. In the meantime, I've installed the -dbg packages for xorg-core and xorg-video-intel in the hopes that future backtraces might be more useful. If I see this crash again, I'll post the log here in the comments. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Mon Nov 16 15:21:27 2015 DistUpgraded: 2015-11-03 14:44:11,845 DEBUG enabling apt cron job DistroCodename: wily DistroVariant: ubuntu DkmsStatus: vboxhost, 5.0.4, 3.19.0-31-generic, x86_64: installed vboxhost, 5.0.4, 4.2.0-16-generic, x86_64: installed vboxhost, 5.0.4, 4.2.0-18-generic, x86_64: installed EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:2210] InstallationDate: Installed on 2014-06-24 (510 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) MachineType: LENOVO 20BECTO1WW ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic.efi.signed root=UUID=022a17a0-1dc9-4b5c-ad86-912739c13a73 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to wily on 2015-11-03 (13 days ago) dmi.bios.date: 03/19/2014 dmi.bios.vendor: LENOVO dmi.bios.version: GMET62WW (2.10 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BECTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 Std dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGMET62WW(2.10):bd03/19/2014:svnLENOVO:pn20BECTO1WW:pvrThinkPadT540p:rvnLENOVO:rn20BECTO1WW:rvrSDK0E50512Std:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20BECTO1WW dmi.product.version: ThinkPad T540p dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Mon Nov 16 14:37:29 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 38562 vendor MEI xserver.version: 2:1.17.2-1ubuntu9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1516822/+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

