Public bug reported:

Description: Ubuntu Zesty Zapus (development branch)
Release: 17.04
Destro: Ubuntu Mate
Video card: Radeon RX 460 4GB 128bit
OpenGL vendor string: X.Org

OpenGL renderer string: Gallium 0.4 on AMD POLARIS11 (DRM 3.8.0 / 
4.9.0-15-generic, LLVM 3.9.1)
OpenGL core profile version string: 4.3 (Core Profile) Mesa 13.0.4
OpenGL core profile shading language version string: 4.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 13.0.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 13.0.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions:

There are some artefacts if you are using a AMD video card (see the 
video----https://www.youtube.com/watch?v=qwfrTU3h6Eo)
This problem is only for AMD cards, this bug is not present on a laptop with 
intel hd 4000 video card.

** Affects: ubuntu-mate
     Importance: Undecided
         Status: New

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

** Also affects: ubuntu-mate
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1663391

Title:
  Mesa+AMD Video artefacts

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