updating using this guide 
https://launchpad.net/~oibaf/+archive/graphics-drivers/  solves the problem 
(but introduces other display problems)
So I think we just have to wait a bit until mesa 10.2 settles.

I too have a haswell chip, use it's onboard gfx feature and experience
massive problems with playback of any video (including dvb-s) using vlc
or kaffeine.

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https://bugs.launchpad.net/bugs/1243261

Title:
  apparent GPU hang on haswell laptop when playing movie on libreoffice

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