kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Marius Gedminas, thank you for reporting this and helping make Ubuntu better. As per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (1.39-1.24). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.

For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.

Thank you for your understanding.

** Tags added: bios-outdated-1.39-1.24

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1263681

Title:
  DisplayPort hotplugging is not detected on a ThinkPad X220

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Steps to reproduce:
  1. Get a Lenovo ThinkPad X220 with Intel graphics (PCI ID 8086:0126, rev 09)
  2. Get a DisplayPort -> DVI cable, plug the DVI end into a monitor (Samsung SyncMaster 193p+)
  3. Plug the DP end into the ThinkPad

  What I expect:
  - hotplug is detected within a reasonable time, GNOME automatically extends my desktop

  What actually happens
  - nothing

  Things that work:
  - if I run 'xrandr' in an xterm, the monitor is detected instantly and GNOME reconfigures the screen.
  - if I open System Preferences -> Display, it does an xrandr probe behind my back and instantly detects/reconfigures the screen.
  - if I plug the DP cable before I open the laptop lid to wake it up from S3 sleep, the external monitor is detected.
  - if I use a VGA cable instead of the DP -> DVI one, hotplug is detected within seconds
  - if I *unplug* the DP cable, the unplug is detected instantly.
  - I once waited ~5 minutes without running xrandr, and it actually detected the monitor and reconfigured.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-extra-3.11.0-15-generic 3.11.0-15.23
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mg         2722 F.... pulseaudio
  Date: Mon Dec 23 14:33:12 2013
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=bf592a79-5f4e-486d-b69d-7525d492dcc6
  InstallationDate: Installed on 2012-07-25 (515 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  Lsusb:
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 4291WJF
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=36079681-53fc-4ca2-80ac-98321c07e8d2 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to saucy on 2013-10-17 (66 days ago)
  WifiSyslog:
   
  dmi.bios.date: 05/31/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET47WW (1.17 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4291WJF
  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:bvr8DET47WW(1.17):bd05/31/2011:svnLENOVO:pn4291WJF:pvrThinkPadX220:rvnLENOVO:rn4291WJF:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4291WJF
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

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