https://bugs.freedesktop.org/show_bug.cgi?id=99851

--- Comment #17 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to intermediadc@hotmail.com from comment #16)
> why im sure it is an xorg issue or one of xorg  component issue
> (cafedead),because on Lubuntu 14.04.5 i had kernel 4.9 and no issue but xorg
> was 1.6

X has nothing to do with the kernel ring tests.  Those happen long before X
gets involved.  If the ring tests fail, all acceleration is disabled so you
need to sort out the kernel issue before addressing X.

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