[Bug 39282] radeon HD6790 (barts) card produces black+white horizontal stripes on screen when launching Xorg

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=39282

--- Comment #57 from Mengjiao Lu <mengjiao.lu at gmail.com> 2012-05-25 22:57:00 PDT ---
I have the same issue with my HD 6790. 

Thanks very much for your patch, but sadly it does not work for me. 
I patched sources of kernel 3.3.7, but the black and white stripes are still
there. 


(In reply to comment #52)
> Created attachment 62067 [details] [review]
> Fix backend map
> 
> This patch should definitely fix your issue, it works for me on my HD6790.

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