xserver with backclear patch for openSUSE 11.2

Some desktop effects (e.g. maximizing windows on compiz and kwin4) are unacceptably slow (take a few SECONDS) when using the fglrx driver on ATI cards. This problem is well known and has been discussed in many places (e.g. on the Phoronix forums). Who is to blame for the problem, is not entirely clear (possible candidates: kwin, xorg, fglrx - e.g. see this blog).

It is reasonable to suspect that it will still take some time until the true source of the problem is located and a fix is brought foreward. As an intermediary solution there exists a "workaround" (a patchfor xserver), which disables background initialization. This will result in background corruption (video garbage) in windows or new objects, however it also gives a performance boost e.g. for users of ATI graphics cards and chips under the fglrx driver, and on some drivers the corruption isn't noticeable.

Update: I started to use a different patch, which addressed the (theoretical) security issues of the no-backfill patch but achieves the same performance gains: xserver-xorg-backclear.patch

You can install the packages by using this buildservice repository for 11.2:
http://download.opensuse.org/repositories/home:/dgrafenhofer/openSUSE_11.2/

Links:

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