I managed to reproduce it once trying to move from the on-laptop miniDP
connector to the dock's full-size DP connector -- then I had a black
background (well, no backgound) and the window trails.
It looks to me like an issue in compiz, but it might really be X. In
doubt, I'm not going to change this and let someone more knowledgeable
than me investigate this further.
If anything needs to be attempted, my X230 doesn't ever run anything
important (I use it for running installer tests, etc.), so I can do
further testing (and reinstalls).
** Changed in: xorg (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1631519
Title:
No X on boot with external monitor connected
Status in xorg package in Ubuntu:
Confirmed
Bug description:
When booting from today's (201610907) daily yakkety livecd with an
external display attached X does not start.
If the external monitor is attached after X has started I can boot to
the desktop using only using the laptop's LCD (ThinkPad x230, intel
graphics). The attaching a 1920x1080 LCD via miniDP extends the
desktop but windows moved around produce a trail of windows that
persist even after the window is closed.
This is a regression from Xenial.
$ lsb_release -rd
Description: Ubuntu Yakkety Yak (development branch)
Release: 16.10
$ apt-cache policy xorg
xorg:
Installed: 1:7.7+13ubuntu4
Candidate: 1:7.7+13ubuntu4
Version table:
*** 1:7.7+13ubuntu4 500
500 http://archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: xorg 1:7.7+13ubuntu4
ProcVersionSignature: Ubuntu 4.8.0-19.21-generic 4.8.0-rc8
Uname: Linux 4.8.0-19-generic x86_64
.tmp.unity_support_test.0:
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CasperVersion: 1.379
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: Fri Oct 7 20:23:46 2016
DistUpgraded: Fresh install
DistroCodename: yakkety
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:21fa]
LiveMediaBuild: Ubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20161007)
MachineType: LENOVO 2306CTO
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi
file=/cdrom/preseed/username.seed boot=casper quiet splash ---
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/25/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G2ET97WW (2.57 )
dmi.board.asset.tag: Not Available
dmi.board.name: 2306CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrG2ET97WW(2.57):bd10/25/2013:svnLENOVO:pn2306CTO:pvrThinkPadX230:rvnLENOVO:rn2306CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2306CTO
dmi.product.version: ThinkPad X230
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.13.0+16.10.20160818.2-0ubuntu2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.70-1
version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.3-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.3-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-1ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20160706-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-2
xserver.bootTime: Fri Oct 7 20:18:12 2016
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.4-1ubuntu6
xserver.video_driver: modeset
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