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[Me <mayerchristel@xxxxxxxxx>]

Public bug reported:

My PC is an Intel Core I3 and I use the built-in HD 4600 graphics. My
display is 1680x1050, connected via DVI-D, Ubuntu version is 15.10
64-bit.

I do a fresh Ubuntu install and install and run glmark2. The horse spins
smoothly.

I set "System settings -> Displays -> Rotation" to "Counterclockwise",
rotate my display and run glmark2 again. The horse totally stutters.

When the rotation is "Counterclockwise" other OpenGL applications will
even freeze.

** Affects: mesa (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1540194

Title:
  OpenGL stutter and freeze when rotation = Counterclockwise

Status in mesa package in Ubuntu:
  New

Bug description:
  My PC is an Intel Core I3 and I use the built-in HD 4600 graphics. My
  display is 1680x1050, connected via DVI-D, Ubuntu version is 15.10
  64-bit.

  I do a fresh Ubuntu install and install and run glmark2. The horse
  spins smoothly.

  I set "System settings -> Displays -> Rotation" to "Counterclockwise",
  rotate my display and run glmark2 again. The horse totally stutters.

  When the rotation is "Counterclockwise" other OpenGL applications will
  even freeze.

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