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[Marco Trevisan (Treviño) <mail@xxxxxxxxx>]

** Changed in: unity (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/938738

Title:
  Half screen display on primary when extending

Status in On-the-fly display switcher:
  New
Status in Unity:
  Incomplete
Status in “disper” package in Ubuntu:
  New
Status in “nvidia-graphics-drivers” package in Ubuntu:
  New
Status in “unity” package in Ubuntu:
  Incomplete

Bug description:
  When going from single mode to extend using 'disper -e -t right', the
  new display shows up fine, but the existing/primary display shows the
  bottom half black, and the display area seems to be 'shifted up' 50%,
  so I only see the bottom half of my desktop on the top half of the
  monitor.

  I'm using MBP 5,3 with a Mac Cinema external display with disper
  0.3.0.  This does not happen consistently.  Maybe once every 30 times
  I use 'disper -e'.  Once it does happen, it seems to repeat every time
  I switch modes, until I restart Xorg.

  
  $ disper -v -e -t right
  Enabled plugins: 
  auto-detected displays: DFP-0, DFP-2
  resolutions of DFP-0: 320x175, 320x200, 360x200, 320x240, 400x300, 416x312, 512x384, 640x350, 576x432, 640x400, 680x384, 720x400, 640x480, 720x450, 640x512, 700x525, 800x512, 840x525, 800x600, 960x540, 832x624, 960x600, 1024x768, 1152x864, 1360x768, 1440x900
  adding auto-select metamode:  :: DFP-0: nvidia-auto-select +0+0, DFP-2: nvidia-auto-select +0+0
  associating displays: DFP-0, DFP-2
  associating displays: DFP-0
  adding auto-select metamode:  :: DFP-0: nvidia-auto-select +0+0, DFP-2: nvidia-auto-select +0+0
  associating displays: DFP-0, DFP-2
  associating displays: DFP-0
  resolutions of DFP-2: 320x175, 320x200, 360x200, 320x240, 400x300, 416x312, 512x384, 640x350, 576x432, 640x400, 680x384, 720x400, 640x480, 720x450, 640x512, 700x525, 800x512, 840x525, 800x600, 960x540, 832x624, 960x600, 896x672, 928x696, 960x720, 1024x768, 1152x864, 1360x768, 1280x960, 1440x900, 1280x1024, 1400x1050, 1600x1024, 1680x1050, 1600x1200, 1920x1080, 1920x1200, 1792x1344, 1856x1392, 1920x1440, 1280x720, 2560x1440
  preferred resolutions for displays: DFP-0: 1440x900, DFP-2: 2560x1440
  adding auto-select metamode:  :: DFP-0: nvidia-auto-select +0+0, DFP-2: nvidia-auto-select +0+0
  associating displays: DFP-0, DFP-2
  adding metamode:  :: DFP-0: 1440x900 +0+0, DFP-2: 2560x1440 +1440+0
  setting xinerama info order: DFP-0, DFP-2
  associating displays: DFP-0, DFP-2

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