Shevek, as per http://support.lenovo.com/us/en/products/laptops-and- netbooks/thinkpad-t-series-laptops/thinkpad-t550 an update to your computer's buggy and outdated BIOS is available (1.10). 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 ** Tags added: bios-outdated-1.10 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu.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/1435070 Title: Thinkpad T550: Broadwell with Intel HD5500 powers off randomly Status in xorg package in Ubuntu: Incomplete Bug description: In the first two weeks of owning a Broadwell T550, I have suffered about two dozen abrupt power-offs. This has happened: a) While resuming from suspend. b) While in normal operation and just moving the mouse. c) While switching from X to console by pressing ctrl-alt-F1. There was no kernel panic, no log files, just an abrupt power-off. In conjunction with several other HD5500 issues, I am starting to suspect the intel video driver, and have switched to the modesetting driver. Setting the Intel driver to use AccelMethod: none made the system more reliable but did not eliminate crashes. Workaround: Put the following in /etc/X11/xorg.conf: Section "Device" Identifier "intel" Driver "modesetting" EndSection ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 ApportVersion: 2.16.2-0ubuntu4 Architecture: amd64 CurrentDesktop: XFCE Date: Sun Mar 22 13:23:01 2015 InstallationDate: Installed on 2015-03-05 (17 days ago) InstallationMedia: Xubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to vivid on 2015-03-19 (3 days ago) --- ApportVersion: 2.17.2-0ubuntu1.5 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: XFCE DistUpgraded: Fresh install DistroCodename: vivid DistroRelease: Ubuntu 15.04 DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:2223] InstallationDate: Installed on 2015-05-18 (133 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) LightdmGreeterLog: ** (lightdm-gtk-greeter:2356): WARNING **: Failed to load user image: Failed to open file '/home/shevek/.face': No such file or directory upstart: indicator-power main process (2592) killed by TERM signal upstart: indicator-application main process (2594) terminated with status 1 upstart: indicator-sound main process (2593) killed by TERM signal LightdmGreeterLogOld: ** (lightdm-gtk-greeter:2290): WARNING **: Failed to load user image: Failed to open file '/home/shevek/.face': No such file or directory g_dbus_connection_real_closed: Remote peer vanished with error: Underlying GIOStream returned 0 bytes on an async read (g-io-error-quark, 0). Exiting. upstart: indicator-power main process (2331) killed by TERM signal upstart: indicator-application main process (2333) killed by TERM signal MachineType: LENOVO 20CKCT01WW Package: xorg 1:7.7+7ubuntu4 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-28-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro noprompt persistent quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5 Tags: vivid ubuntu UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 3.19.0-28-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip kvm lpadmin plugdev sambashare sudo XorgConf: Section "Device" Identifier "Intel" Driver "modesetting" Option "SWCursor" "true" EndSection _MarkForUpload: True dmi.bios.date: 03/19/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N11ET31W (1.07 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CKCT01WW dmi.board.vendor: LENOVO dmi.board.version: 0B98417 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN11ET31W(1.07):bd03/19/2015:svnLENOVO:pn20CKCT01WW:pvrThinkPadT550:rvnLENOVO:rn20CKCT01WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CKCT01WW dmi.product.version: ThinkPad T550 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.9-2ubuntu1~vivid2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.9-2ubuntu1~vivid2 version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Thu Sep 24 20:10:36 2015 xserver.configfile: /etc/X11/xorg.conf xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.17.1-0ubuntu3.1 xserver.video_driver: modeset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1435070/+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

