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[Anthony Wong <anthony.wong@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
     Assignee: Canonical Hardware Enablement Team (canonical-hwe-team) => Haitao Zhang (minipanda)

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https://bugs.launchpad.net/bugs/1199845

Title:
  [Lenovo L530]: No external display via displayport

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  [Lenovo E49]: No external display via displayport

  Problem:

  Plugging in a display port connection does not trigger a udev event or
  normal screen flick effect when connecting an external display.
  External monitor remains off, and connection led amber.

  Reproducable: yes

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-36-generic 3.5.0-36.57~precise1
  ProcVersionSignature: Ubuntu 3.5.0-36.57~precise1-generic 3.5.7.14
  Uname: Linux 3.5.0-36-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1696 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0x92610000 irq 46'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:10ec0269,17aa21f8,00100203 HDA:80862806,80860101,00100000'
     Controls      : 38
     Simple ctrls  : 13
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Wed Jul 10 10:54:59 2013
  HibernationDevice: RESUME=UUID=d1a365e6-7dae-4caf-ab08-a3722c2bd770
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  MachineType: LENOVO 814S16G
  MarkForUpload: True
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-36-generic root=UUID=cc12f5d6-ac00-4d41-88e5-817b4fa4faef ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-36-generic N/A
   linux-backports-modules-3.5.0-36-generic  N/A
   linux-firmware                            1.79.4
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/03/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G3ET29WW(1.03)
  dmi.board.asset.tag: Not Available
  dmi.board.name: 814S16G
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG3ET29WW(1.03):bd04/03/2012:svnLENOVO:pn814S16G:pvrThinkPadL530:rvnLENOVO:rn814S16G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 814S16G
  dmi.product.version: ThinkPad L530
  dmi.sys.vendor: LENOVO

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