Shevek, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal: apport-collect -p xorg 1435070
Please ensure you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information. ** Package changed: xserver-xorg-video-intel (Ubuntu) => xorg (Ubuntu) ** 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 Ubuntu Touch seeded 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1435070/+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