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[Elmar Pruesse <epruesse@xxxxxxxxxxxxx>]

Public bug reported:

I get a blank (turned off) display on an Eizo monitor connected via
DisplayPort to a Lenovo x220.

The display works on 12.10 and does work while booting. As soon as X
starts, the display is gone. Xrandr does show it and it can be
configured. The screenshot tool shows entire area correctly. But nothing
appears on the screen. Reconnecting the cable does the usual flicker, as
does power cycling the monitor. The display stays blank.

On 12.10 something similar occurred intermittently. After closing the
notebook lid, the monitor had to be powercycled (re-plugging the cable
did not help).

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-31-generic 3.8.0-31.46
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D3', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D8p', '/dev/snd/by-path', '/dev/snd/controlC29', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Sun Oct 13 16:20:33 2013
HibernationDevice: RESUME=UUID=23a2a205-96a5-40bb-9f5f-97e7b8c1dd5d
InstallationDate: Installed on 2013-10-13 (0 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: LENOVO 4290G51
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/vg-u1304 ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-31-generic N/A
 linux-backports-modules-3.8.0-31-generic  N/A
 linux-firmware                            1.106
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/22/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET66WW (1.36 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4290G51
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:bvr8DET66WW(1.36):bd10/22/2012:svnLENOVO:pn4290G51:pvrThinkPadX220:rvnLENOVO:rn4290G51:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4290G51
dmi.product.version: ThinkPad X220
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug displayport raring regression x220

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https://bugs.launchpad.net/bugs/1239358

Title:
  [Lenovo x220] display port stopped working after move to 13.04

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I get a blank (turned off) display on an Eizo monitor connected via
  DisplayPort to a Lenovo x220.

  The display works on 12.10 and does work while booting. As soon as X
  starts, the display is gone. Xrandr does show it and it can be
  configured. The screenshot tool shows entire area correctly. But
  nothing appears on the screen. Reconnecting the cable does the usual
  flicker, as does power cycling the monitor. The display stays blank.

  On 12.10 something similar occurred intermittently. After closing the
  notebook lid, the monitor had to be powercycled (re-plugging the cable
  did not help).

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-31-generic 3.8.0-31.46
  ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
  Uname: Linux 3.8.0-31-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D3', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D8p', '/dev/snd/by-path', '/dev/snd/controlC29', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Sun Oct 13 16:20:33 2013
  HibernationDevice: RESUME=UUID=23a2a205-96a5-40bb-9f5f-97e7b8c1dd5d
  InstallationDate: Installed on 2013-10-13 (0 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: LENOVO 4290G51
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/vg-u1304 ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-31-generic N/A
   linux-backports-modules-3.8.0-31-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/22/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET66WW (1.36 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4290G51
  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:bvr8DET66WW(1.36):bd10/22/2012:svnLENOVO:pn4290G51:pvrThinkPadX220:rvnLENOVO:rn4290G51:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4290G51
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

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