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Please try reinstalling the Ubuntu graphics driver you can get it here:
Also, at that website you should be able to get better support for Ubuntu and the graphics driver.
I have also found that Intel has no latest driver support for my Voyager 16.04, cause it's an Ubuntu 16.04 derivation and I get the same "Distribution not supported".
When I log in I hear the welcome chime, but when I play a video there's no sound at all.
When can we expect an Intel graphics/audio driver for Linux that works on Ubuntu 16.04 and derivates on 01.org?