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[pablomme <pablomme@xxxxxxxxxxxxxx>]

Unfortunately I do not have the affected system any more.

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https://bugs.launchpad.net/bugs/920120

Title:
  nouveau: second monitor remains blank in installed system, but works
  in liveCD

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  When booting off an Oneiric release / Precise daily liveCD image, my
  two monitors (connected to the two DVI outputs of my Nvidia 9600GT
  (nv50 type) graphics card) come up nicely when the plymouth boot
  splash shows up, and continue to work throughout the liveCD session.

  When booting the installed system, the plymouth bootsplash fails to
  render, showing graphical corruption instead, and the second monitor
  stays off. Then X loads successfully, and the second display is
  correctly detected, but any attempt to turn it on fails (no signal
  reaches the monitor), even though the system believes it's turned it
  on - everything works as if the monitor was on, except for the monitor
  actually being on.

  I would think this is a problem with the initialization of the
  hardware, and given the point at which the liveCD/installed boot
  processes show differences, it may have to do with the grub-kernel
  handover. My grub menu is displayed by default.

  A note about the corrupted plymouth screen: about 2/3 of the screen is
  corrupted, but the bottom 1/3 becomes Ubuntu-aubergine-coloured. This
  could indicate that there is a wrong memory offset somewhere.

  WORKAROUND Use the nvidia binary driver with TwinView.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-10-generic 3.2.0-10.17
  ProcVersionSignature: Ubuntu 3.2.0-10.17-generic 3.2.1
  Uname: Linux 3.2.0-10-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: M1010LT [M Audio Delta 1010LT], device 0: ICE1712 multi [ICE1712 multi]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 1.91-0ubuntu1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: M1010LT [M Audio Delta 1010LT], device 0: ICE1712 multi [ICE1712 multi]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pablo      1701 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info:
   Card hw:0 'M1010LT'/'M Audio Delta 1010LT at 0x1140, irq 20'
     Mixer name	: 'ICE1712 - multitrack'
     Components	: ''
     Controls      : 85
     Simple ctrls  : 57
  Date: Sun Jan 22 18:30:48 2012
  HibernationDevice: RESUME=UUID=e8f4b4c9-0fa5-4a4d-8cd7-cc108fc92653
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120117)
  IwConfig:
   lo        no wireless extensions.

   eth0      no wireless extensions.
  MachineType: Hewlett-Packard HP Compaq dc5750 Microtower
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-10-generic root=UUID=9e251900-b9d7-4135-9c96-b3a417352468 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-10-generic N/A
   linux-backports-modules-3.2.0-10-generic  N/A
   linux-firmware                            1.67
  RfKill:

  SourcePackage: linux
  UpgradeStatus: Upgraded to precise on 2012-01-19 (3 days ago)
  dmi.bios.date: 08/07/2008
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 786E3 v02.35
  dmi.board.name: 0A64h
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: CZC7011NMX
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr786E3v02.35:bd08/07/2008:svnHewlett-Packard:pnHPCompaqdc5750Microtower:pvr:rvnHewlett-Packard:rn0A64h:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP Compaq dc5750 Microtower
  dmi.sys.vendor: Hewlett-Packard

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