[Nouveau] [Bug 33977] X core font rendering is "laggy"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=33977

--- Comment #15 from Michel Dänzer <michel at daenzer.net> 2011-02-09 22:37:50 PST ---
(In reply to comment #13)
> Just to be clear, nouveau uses a "FlushCallback" instead a call in the
> BlockHandler. This should apparently cover more cases than the BlockHandler,
> but I don't know the specifics.

Neither place alone is sufficient. Flushing in the FlushCallback is necessary
for DRI2 texture-from-pixmap and flushing in the BlockHandler is necessary to
avoid GPU commands being delayed indefinitely when the server goes idle.

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