[Bug 1091068] Re: [Dell Precision T1650] DisplayPort not working, no hotplug support.

Mon Dec 17 20:17:10 UTC 2012

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https://bugs.launchpad.net/bugs/1091068

Title:
  [Dell Precision T1650] DisplayPort not working, no hotplug support.

Status in “libdrm” package in Ubuntu:
  In Progress
Status in “linux” package in Ubuntu:
  Incomplete
Status in “mesa” package in Ubuntu:
  Fix Released
Status in “xserver-xorg-video-intel” package in Ubuntu:
  In Progress

Bug description:
  cid:201201-10376

  There are three ports, two DisplayPorts and one VGA, only the initial
  cold plugged port will work, and others will not work if you try to
  hot swap, but the initial one remains working if you plug back.

  And the system became really laggy when plugged DisplayPort, no matter
  it's coldplugged or hot swap later.

  Trying to hotplug on DisplayPort, getting following messages from
  syslog:

  Dec 16 21:50:49 201201-10376 kernel: [  223.751560] irq 16: nobody cared (try booting with the "irqpoll" option)
  Dec 16 21:50:49 201201-10376 kernel: [  223.751567] Pid: 0, comm: swapper/0 Tainted: G         C   3.2.0-34-generic #53-Ubuntu
  Dec 16 21:50:49 201201-10376 kernel: [  223.751569] Call Trace:
  Dec 16 21:50:49 201201-10376 kernel: [  223.751571]  <IRQ>  [<ffffffff810db2bd>] __report_bad_irq+0x3d/0xe0
  Dec 16 21:50:49 201201-10376 kernel: [  223.751584]  [<ffffffff810db545>] note_interrupt+0x135/0x190
  Dec 16 21:50:49 201201-10376 kernel: [  223.751588]  [<ffffffff810d8dba>] handle_irq_event_percpu+0xaa/0x210
  Dec 16 21:50:49 201201-10376 kernel: [  223.751592]  [<ffffffff810d8f71>] handle_irq_event+0x51/0x80
  Dec 16 21:50:49 201201-10376 kernel: [  223.751596]  [<ffffffff810dbf9a>] handle_fasteoi_irq+0x6a/0x110
  Dec 16 21:50:49 201201-10376 kernel: [  223.751601]  [<ffffffff81015282>] handle_irq+0x22/0x40
  Dec 16 21:50:49 201201-10376 kernel: [  223.751606]  [<ffffffff81666eda>] do_IRQ+0x5a/0xe0
  Dec 16 21:50:49 201201-10376 kernel: [  223.751610]  [<ffffffff8165c26e>] common_interrupt+0x6e/0x6e
  Dec 16 21:50:49 201201-10376 kernel: [  223.751612]  <EOI>  [<ffffffff8108e189>] ? enqueue_hrtimer+0x39/0xc0
  Dec 16 21:50:49 201201-10376 kernel: [  223.751623]  [<ffffffff8139521a>] ? arch_local_irq_enable+0xb/0xd
  Dec 16 21:50:49 201201-10376 kernel: [  223.751627]  [<ffffffff81395e1d>] acpi_idle_enter_c1+0x95/0xbf
  Dec 16 21:50:49 201201-10376 kernel: [  223.751632]  [<ffffffff81507261>] cpuidle_idle_call+0xc1/0x280
  Dec 16 21:50:49 201201-10376 kernel: [  223.751636]  [<ffffffff8101222a>] cpu_idle+0xca/0x120
  Dec 16 21:50:49 201201-10376 kernel: [  223.751642]  [<ffffffff8162241e>] rest_init+0x72/0x74
  Dec 16 21:50:49 201201-10376 kernel: [  223.751647]  [<ffffffff81cfbc03>] start_kernel+0x3b0/0x3bd
  Dec 16 21:50:49 201201-10376 kernel: [  223.751652]  [<ffffffff81cfb388>] x86_64_start_reservations+0x132/0x136
  Dec 16 21:50:49 201201-10376 kernel: [  223.751657]  [<ffffffff81cfb140>] ? early_idt_handlers+0x140/0x140
  Dec 16 21:50:49 201201-10376 kernel: [  223.751661]  [<ffffffff81cfb459>] x86_64_start_kernel+0xcd/0xdc
  Dec 16 21:50:49 201201-10376 kernel: [  223.751663] handlers:
  Dec 16 21:50:49 201201-10376 kernel: [  223.751667] [<ffffffff81492740>] usb_hcd_irq
  Dec 16 21:50:49 201201-10376 kernel: [  223.751669] Disabling IRQ #16

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-34-generic 3.2.0-34.53
  ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33
  Uname: Linux 3.2.0-34-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu15
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1476 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf7c30000 irq 46'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:10ec0269,1028053a,00100100 HDA:80862806,80860101,00100000'
     Controls      : 38
     Simple ctrls  : 16
  Date: Sun Dec 16 21:55:26 2012
  HibernationDevice: RESUME=UUID=722ec9f2-392d-40de-b3d6-5aa702f4b5be
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  IwConfig:
   lo        no wireless extensions.

   eth0      no wireless extensions.
  MachineType: Dell Inc. Precision T1650
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-34-generic root=UUID=ed31dac2-f2b8-4a04-9295-8534f1cfe58b ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-34-generic N/A
   linux-backports-modules-3.2.0-34-generic  N/A
   linux-firmware                            1.79.1
  RfKill:

  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/09/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: X72
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrX72:bd08/09/2012:svnDellInc.:pnPrecisionT1650:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct6:cvr:
  dmi.product.name: Precision T1650
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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