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
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.