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[Captain Chaos <1225646@xxxxxxxxxxxxxxxxxx>]

I tried the latest development release (as of 27-9-2013), but it won't
boot at all on my Optimus laptop, even with no external monitors
attached. It crashes with a "divide error: 0000 [#1] SMP" somewhere in
nouveau. I'll attach a photo of the screen. I don't know how to capture
the actual text.

** Attachment added: "Screenshot of error on startup"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1225646/+attachment/3845812/+files/20130927_220824.jpg

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https://bugs.launchpad.net/bugs/1225646

Title:
  Ubuntu hangs when booting laptop with HDMI and VGA monitors attached

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I have a bto 15CL58 laptop, a Haswell laptop which has integrated
  Intel graphics as well as an NVidia GTX765M with the Optimus system
  for switching between the integrated and discrete GPU.

  When I try to boot Ubuntu 13.04 on it while having an HDMI monitor as
  well as a VGA monitor attached to the laptop, Ubuntu hangs. It shows
  the graphical Ubuntu logo with the dots underneath and then just sits
  there. Windows has no problem with this configuration, so I know the
  hardware can do it. If I remove the VGA connection Ubuntu does boot
  (and allows me to use the integrated display as well as the HDMI
  monitor).

  WORKAROUND: Note that after upgrading the kernel to 3.11 (from
  ~kernel-ppa/mainline) and installing the updated NVidia proprietary
  driver packages from ~xorg-edgers (since after the kernel update the
  kernel module doesn't compile), it *does* work!

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-29-generic 3.8.0-29.42
  ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
  Uname: Linux 3.8.0-29-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  pepijn     3042 F.... pulseaudio
   /dev/snd/controlC0:  pepijn     3042 F.... pulseaudio
   /dev/snd/controlC1:  pepijn     3042 F.... pulseaudio
  Date: Sun Sep 15 13:04:37 2013
  HibernationDevice: RESUME=UUID=50809abf-fc34-4ead-b016-aa45655ccede
  InstallationDate: Installed on 2013-07-31 (45 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Notebook W350STQ/W370ST
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=6ca812df-7fe0-490d-af8c-6cc9758c0d89 ro "acpi_osi=!Windows 2012" acpi_backlight=vendor quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-29-generic N/A
   linux-backports-modules-3.8.0-29-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/14/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 4.6.5
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: W350STQ/W370ST
  dmi.board.vendor: Notebook
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: Notebook
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd06/14/2013:svnNotebook:pnW350STQ/W370ST:pvrNotApplicable:rvnNotebook:rnW350STQ/W370ST:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
  dmi.product.name: W350STQ/W370ST
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Notebook

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