Public bug reported:
Running on a recently acquired Lenovo Yoga 260.
How to reproduce:
1. plug external screen
2. activate/configure monitor (either using GUI or xrandr)
3. set relative position of ext monitor to something else than the default
(e.g. above or below)
4. move cursor from laptop screen to external screen
5. move cursor back from extrernal screen to laptop screen
At this point a full system freeze occurs. Cannot switch to console, no
kernel error (crashkernel does not activate), no trace in dmesg/Xorg.log
etc. Even remote ssh sessions onto the computer freeze, so no extra
information can be gathered this way.
The lock-up does not occur if any of the steps above are omitted:
- no issue if the external monitor is not activated
- no issue if the relative position is not changed
- no issue if the mouse cursor stays on the laptop screen where it was initially
- no issue if the mouse cursor iis moved from the laptop screen to the external
screen and stays there
**Also the issue does not occur if the external monitor is already
plugged before boot, and the resolution and position is only set once
upon Xorg start-up**. In other words it is possible to use an external
monitor as long as 1) it is plugged before boot 2) the Xorg conf
contains explicit entries to set the resolution and position.
The issue can be reproduced reliably on both a fresh 15.10 install, any
stock Ubuntu kernel, and the mainline PPA kernels (up to and including
the latest 4.6-rc2). Also reproduces reliably with both the base intel
drivers shipped with 15.10 and those provided by Intel's linux-
installer.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
Uname: Linux 4.6.0-040600rc2-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Wed Apr 6 11:31:13 2016
DistUpgraded: Fresh install
DistroCodename: wily
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GpuHangFrequency: Continuously
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Since before I upgraded
GraphicsCard:
Intel Corporation Sky Lake Integrated Graphics [8086:1916] (rev 07) (prog-if
00 [VGA controller])
Subsystem: Lenovo Device [17aa:2237]
InstallationDate: Installed on 2016-03-13 (23 days ago)
InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: LENOVO 20FD0004US
ProcEnviron:
TERM=screen
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/usr/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.6.0-040600rc2-generic
root=/dev/mapper/xubuntu--vg-root ro quiet splash intel_idle.max_cstate=1
crashkernel=384M-:200M
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/05/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N1GET34W (1.11 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20FD0004US
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN1GET34W(1.11):bd11/05/2015:svnLENOVO:pn20FD0004US:pvrThinkPadYoga260:rvnLENOVO:rn20FD0004US:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20FD0004US
dmi.product.version: ThinkPad Yoga 260
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.65+git20151026.c745e541-0ubuntu0ricotz~wily
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.4-1intel1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.4-1intel1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:7.5.99+git20150521.d64a13eb-0ubuntu0ricotz
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20151202.da9ad388-0ubuntu0sarvatt
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.11+git20150926.1ff13a92-0ubuntu0sarvatt
xserver.bootTime: Wed Apr 6 11:25:42 2016
xserver.configfile: None
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.17.2-1ubuntu9.1
xserver.video_driver: intel
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug freeze third-party-packages ubuntu wily
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https://bugs.launchpad.net/bugs/1566759
Title:
Full system lockup after attaching external monitor
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