https://bugzilla.kernel.org/show_bug.cgi?id=50091
--- Comment #29 from Dzianis Kahanovich mahatma@bspu.unibel.by 2013-03-04 09:53:24 --- (In reply to comment #28)
That's a separate issue and has nothing to do with this bug. See https://bugs.freedesktop.org/show_bug.cgi?id=47182 In most cases, it is no bug at all.
OK, I just suggested since new DRI code not detect this misalignment - it can be sources of this bug, this is just visual differences.