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[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

Andreas' fix is mentioned officially as part of Mesa 10.3.1. I'm yet to test it on an i945 system though...
http://lists.freedesktop.org/archives/mesa-dev/2014-October/069253.html

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

Title:
  i915 driver/i945 hardware: Mir GL clients are rendered as black (or
  transparent or crash) 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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