[Bug 35579] Poor performance in Firefox 4

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35579

--- Comment #36 from Karl Tomlinson <bugs.freedesktop at karlt.net> 2011-08-21 21:28:55 PDT ---
(In reply to comment #26)
> There must be something wrong with the driver, after all. That is to say, looks
> like the proprietary drivers optimize for this somehow

Some better than others I guess.  (At least some) NVIDIA drivers "optimize" by
implementing RepeatPad incorrectly by extending with black.
https://bugzilla.mozilla.org/show_bug.cgi?id=636192

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