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[Matthew Fisher <mdf@xxxxxxxxxxxxxx>]

apport information

** Attachment added: "UdevDb.txt"
   https://bugs.launchpad.net/bugs/1549335/+attachment/4585952/+files/UdevDb.txt

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https://bugs.launchpad.net/bugs/1549335

Title:
  screen is black after xrandr rotate command

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  When running "xrandr --output xxxxx --rotate inverted " on intel
  platforms with ubuntu 14.04.3, screen becomes black.

  Steps to reproduce:
  1. install ubuntu 14.04.3 with intel graphic card and boot up into desktop
  2. run xrandr --output eDP1 --rotate inverted

  Expect result:
  eDP screen rotate inverted

  Actual result:
  eDP screen is black.

  This is the same bug as https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1446979 but the fix seems to have been backported to the Vivid kernel.  It also affects 14.04.3 with this kernel:
  3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
  --- 
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  rise       2727 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=288c8cbb-b81e-48bb-912b-bb0c859187c5
  InstallationDate: Installed on 2016-01-11 (50 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  Lsusb:
   Bus 002 Device 003: ID 8087:07dc Intel Corp. 
   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
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-49-generic root=UUID=5c39a1a0-99a6-48a2-b161-9c8d33b2ff86 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-49.55~14.04.1-generic 3.19.8-ckt12
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-49-generic N/A
   linux-backports-modules-3.19.0-49-generic  N/A
   linux-firmware                             1.127.20
  Tags:  trusty
  Uname: Linux 3.19.0-49-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/30/2015
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: GKPPT10H.86A.0058.2015.0630.1349
  dmi.board.name: D33217GKE
  dmi.board.vendor: Intel Corporation
  dmi.board.version: G76540-207
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrGKPPT10H.86A.0058.2015.0630.1349:bd06/30/2015:svn:pn:pvr:rvnIntelCorporation:rnD33217GKE:rvrG76540-207:cvn:ct3:cvr:

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