[Bug 17129] Slow to move translucent windows above a certain size with EXA (r300)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=17129





--- Comment #5 from Michel Dänzer <michel at tungstengraphics.com>  2008-08-14 08:58:32 PST ---
I tracked down the KDE4 slowdown to the shadows ending up using pictures with
non-power-of-two dimensions, which at least pre-R500 hardware doesn't support
as a repeated source. You can avoid this by making sure the kwin shadow plugin
size and offset (or something like that) parameters add up to a power of two.

Now, I don't think xcompmgr uses the same technique for shadows, and I can't
seem to reproduce the problem with it even with shadows enabled. But FWIW, does
not enabling shadows avoid the problem for you?


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