[Nouveau] [Bug 20006] powerpc64: Black screen using RandR12

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=20006





--- Comment #17 from bmaass <bmaass at math.uni-bremen.de>  2009-02-13 02:32:16 PST ---
Created an attachment (id=22894)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=22894)
randr12 and patches register dump

Patch 0001 didn't do anything visibly, patch 0002 "fixes" the problem (more in
a second) and I couldn't see if patch 0003 improved anything over 0002.

The "fix" is that I finally get a picture (can see xterms, xclock, interact
with them), but it's still horribly wrong somehow. Looks like the picture is
missing vertical lines, but somehow still not everywhere (TWM resize lines may
disappear, but there are no gaps in the windows themselves).

This is consistent over all modes I've tried (2560x1600, 1920x1200, 1280x800)
and doesn't show up on a screenshot. It also doesn't get restored back to
normal when quitting the X server: the brokenness remains when using the
console afterwards.


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