have you installed some vmware stuff, since unitysupporttest shows:
Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed
with exit code 1: OpenGL vendor string: VMware, Inc.
** Changed in: mesa (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1268146
Title:
Very high cpu usage for compiz in 14.04 (mesa incorrectly using
llvmpipe)
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