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[Jason Moiron <1458327@xxxxxxxxxxxxxxxxxx>]

This bug is not limited to the dell hardware but also affects the
MacbookAir6,2 model.   Some more potentially relevant info:

05:00.0 PCI bridge: Intel Corporation DSL3510 Thunderbolt Port [Cactus Ridge] (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)

Some more information playing around with it:

Plugging in the monitor makes everything black but the cursor shows, as
described.  Unplugging the monitor doesn't fix it.  ctrl+alt+backspace
shows the desktop briefly before X crashes.

Setting up the monitor in Marco and then switching to Compiz will work,
but unplugging it will leave the laptop monitor unusable, and plugging
it back in also has pretty mixed results.  However, after the monitor
has been set up (in Marco), you can restart X and log in and use Compiz
and it will initialize properly.

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https://bugs.launchpad.net/bugs/1458327

Title:
  Compiz on Ubuntu Mate 15.04 fails on DELL XPS 13 (9343) with external
  monitor

Status in compiz package in Ubuntu:
  Confirmed

Bug description:
  The DELL XPS13 (9343) came with Ubuntu 14.04 factory preinstalled. But
  it has too many bugs to be useful. In the meantime I have upgraded to
  Ubuntu Mate 15.04 (Vivid) with kernel 3.19.0-18-generic.

  The laptop has only a Mini-Displayport connector. So I use an adapter
  for VGA and HDMI, a no-name 3-in-1, model# 27391 from German company
  CSL.

  When the window-manager is  "Marco (Simple desktop effects)" then I do
  get a connection to an external monitor as it should be. However,
  Using Marco results in a failure when resuming from suspend. (see bug
  report https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454651)

  When I use the window-manager "Compiz (Advanced GPU accelerated
  desktop effects)" I get a proper resume from suspend, but connecting
  an external monitor results in a black screen on both the internal and
  external monitor. I can still see the mouse pointer moving across both
  screens, but no desktop, no menus or anything clickable. Same problem
  for both an external VGA or an external HDMI connection. Sometimes I
  do get a picture on the external monitor, but with a few blank spots,
  and everything is frozen, nothing can be clicked.

  Switching to a terminal by CTRL-ALT-F1 still works, and gives a
  terminal on the internal monitor.

  So currently I can either have a working suspend, or a working external monitor, but not both.
  --- 
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ullix      1683 F.... pulseaudio
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-trusty-amd64-20140620-0
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=7b6c248b-36d3-4dcf-9e9e-427d50206af6
  InstallationDate: Installed on 2015-04-24 (30 days ago)
  InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20140620-04:25
  MachineType: Dell Inc. XPS 13 9343
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-18-generic root=UUID=fda802ca-9257-4fed-bb0d-9f4756dca419 ro pcie_aspm=force radeon.modeset=0 plymouth:debug drm.debug=0xe nouveau.modeset=0 video.use_native_backlight=1 quiet splash pcie_aspm=force radeon.modeset=0 nouveau.modeset=0 video.use_native_backlight=1 "acpi_osi=Windows 2013"
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-18-generic N/A
   linux-backports-modules-3.19.0-18-generic  N/A
   linux-firmware                             1.143.1
  Tags:  vivid
  Uname: Linux 3.19.0-18-generic x86_64
  UpgradeStatus: Upgraded to vivid on 2015-05-23 (0 days ago)
  UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner sudo tape video
  _MarkForUpload: True
  dmi.bios.date: 03/25/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A03
  dmi.board.name: 0TM99H
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA03:bd03/25/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0TM99H:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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