aexl, while Vivid is EOL as per https://wiki.ubuntu.com/Releases, the
release you would be upgrading to isn't.
Hence, to see if this is already resolved in Ubuntu, could you please
upgrade to either Wily or Xenial, and advise if this is still
reproducible?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Tags added: needs-reverse-bisect
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https://bugs.launchpad.net/bugs/1530171
Title:
[Regression] Thinkpad dock: External monitors not recognized after
15.04 upgrade
Status in linux package in Ubuntu:
Incomplete
Bug description:
External monitors are not recognized in display settings when plugged
into any dock port.
They *are* recognized after a reboot (not after logout).
After plugging out and the in again they are not recognized.
A monitor plugged in and out of the non-dock VGA is recognized instantly.
After plugging in or out of the non-dock VGA, monitors plugged to dock ports
are recognized (which serves as a crazy workaround for me now)
(update: this works sometimes, sometimes not).
Everything used to work with 14.10, but stopped with 15.04.
A recent test with 1510 live CD did not fix this.
---
.tmp.unity.support.test.0:
ApportVersion: 2.17.2-0ubuntu1.8
Architecture: amd64
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
DistUpgraded: 2016-01-04 01:09:49,649 DEBUG enabling apt cron job
DistroCodename: vivid
DistroRelease: Ubuntu 15.04
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 4th Gen Core Processor Integrated Graphics Controller
[8086:0416] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device [17aa:501e]
InstallationDate: Installed on 2015-03-05 (311 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 20AUS00N00
Package: xorg 1:7.7+7ubuntu4
PackageArchitecture: amd64
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.19.0-43-generic
root=UUID=82cd15d9-7510-4d2f-a698-28fa51216e13 ro rootflags=subvol=@ quiet
splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-43.49-generic 3.19.8-ckt10
Tags: vivid ubuntu compiz-0.9
Uname: Linux 3.19.0-43-generic x86_64
UpgradeStatus: Upgraded to vivid on 2016-01-04 (6 days ago)
UserGroups: adm cdrom dip lp lpadmin plugdev sambashare saned sudo
_MarkForUpload: True
dmi.bios.date: 08/13/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: J4ET67WW(1.67)
dmi.board.asset.tag: Not Available
dmi.board.name: 20AUS00N00
dmi.board.vendor: LENOVO
dmi.board.version: NO DPK
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrJ4ET67WW(1.67):bd08/13/2014:svnLENOVO:pn20AUS00N00:pvrThinkPadL540:rvnLENOVO:rn20AUS00N00:rvrNODPK:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20AUS00N00
dmi.product.version: ThinkPad L540
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.12.1+15.04.20150922-0ubuntu1
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: Wed Jan 6 15:29:10 2016
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 5568
vendor CMN
xserver.version: 2:1.17.1-0ubuntu3.1
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