Mesa in Ubuntu has a patch for i915 that disables OpenGL 2.0 but not
GLES 2,0. Thats why all mir clients and the unity8 session starts up..
since mirserver always use GL|ES.

Regular qt clients do the EGL init in a different path and they insist
on GL 2.0.

When you recompile mesa without that patch you get the unity8 desktop
but it is just too slow.. It would be better to implement a less
demanding QtQuick backend .. and/or use a different mir compositor..

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https://bugs.launchpad.net/bugs/1549455

Title:
  Unity 8/Mir doesn't load on Intel Pineview graphics

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