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[Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>]

Log aren't useful, this has to do with color artifacts on the screen.
The problem has already been fully diagnosed and fixed upstream.

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1333430

Title:
  Revert incorrect offb ppc64el "fix"

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  This revert went into 3.16, it hasn't hit 3.13-stable yet (though it
  will).

  http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=68986c9f0f4552c34c248501eb0c690553866d6e

  Note that with *current* powerkvm, this will cause the console colors to be wrong (again), at least until
  we release the service pack which will correctly fix the problem on KVM side. If you don't apply the above
  revert, then the colors will be wrong with the new powerkvm..

  We have to do the fix on our side otherwise X won't work properly. Additionally the "hack" that this reverts was never
  going to work in a "pure" LE/LE environment so we have no choice but bite the bullet and do the right fix.

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