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[Andreas Pokorny <andreas.pokorny@xxxxxxxxxxxxx>]

I think this failure is resolved with the updated mir platform patch and
bugfixes for i915 that have been sent upstream. Waiting for those to get
applied.

But the story does not end there. Now when running unity8-dash it fails
because mesa claims it only supports OpenGL 1.4. And that because of
another mesa patch, ubuntu applies against upstream mesa. So with that
i915 allows only GL 1.4, ES 1.0 and ES 2.0.

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https://bugs.launchpad.net/bugs/1275398

Title:
  i915 driver/i945 hardware: Mir GL clients are rendered as black or
  transparent windows when using i945 graphics

Status in Mir:
  Confirmed
Status in “linux” package in Ubuntu:
  Invalid
Status in “mesa” package in Ubuntu:
  In Progress

Bug description:
  Running Mir on a Pentium D system with integrated i945 graphics,
  appears to work at first. The server starts and software clients are
  rendered correctly. However hardware (GL) clients are rendered as all
  black or transparent windows, despite logging to stdout that they
  think they are rendering:

  $ sudo bin/mir_demo_client_egltriangle
  Current active output is 1920x1200 +0+0
  Server supports 2 of 6 surface pixel formats. Using format: 4
  libEGL warning: unsupported platform (null)
  1 FPS
  33 FPS
  60 FPS
  60 FPS
  60 FPS
  60 FPS

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