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[Alberto Salvia Novella <es20490446e@xxxxxxxxx>]

** Changed in: xserver-xorg-video-intel (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1395182

Title:
  Screen tears on xrandr orientation inverted

Status in X.org xf86-video-intel:
  Confirmed
Status in “xserver-xorg-video-intel” package in Ubuntu:
  Confirmed

Bug description:
  When xrandr -o inverted is run, the  resulting image is split down the
  middle. This happens 95% of the time; it has worked once or twice
  without tearing. Rotation can be activated through unity-control-
  center Display Settings rotation field, and that reliably works fine.
  When xrandr -o normal is run, the display returns to normal (although
  bug #1376760 is observed). xrandr -o right and xrandr -o left also
  reliably work without issue; this only occurs on xrandr -o inverted.
  The same behaviors are observed with the longer form of the command
  xrandr --output eDP1 --rotation inverted, etc.

  This has also been reported at https://github.com/pfps/yoga-
  laptop/issues/28, which uses xrandr commands to invert the display.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
  ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
  Uname: Linux 3.16.0-24-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Fri Nov 21 15:09:03 2014
  DistUpgraded: Fresh install
  DistroCodename: utopic
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:2217]
  InstallationDate: Installed on 2014-11-21 (0 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 20CDCTO1WW
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic.efi.signed root=UUID=d032fffc-748c-4ea7-9e61-3c53648c9e27 ro quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/09/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: B0ET22WW (1.09)
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CDCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 Std
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrB0ET22WW(1.09):bd09/09/2014:svnLENOVO:pn20CDCTO1WW:pvrThinkPadS1Yoga:rvnLENOVO:rn20CDCTO1WW:rvrSDK0E50512Std:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20CDCTO1WW
  dmi.product.version: ThinkPad S1 Yoga
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Fri Nov 21 14:47:30 2014
  xserver.configfile: default
  xserver.errors:
   Wacom ISDv4 EC Pen stylus: Invalid type 'cursor' for this device.
   Wacom ISDv4 EC Pen stylus: Invalid type 'touch' for this device.
   Wacom ISDv4 EC Pen stylus: Invalid type 'pad' for this device.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                1079 
   vendor                                     LGD
  xserver.version: 2:1.16.0-1ubuntu1

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