The following reply was made to PR xsrc/42287; it has been noted by GNATS.
From: matthew green <mrg@xxxxxxxxxxxxx>
Cc: xsrc-manager@xxxxxxxxxx, gnats-admin@xxxxxxxxxx,
Subject: re: xsrc/42287 (KDE4 unusable with Intel graphic chipsets)
Date: Mon, 07 Jun 2010 08:32:42 +1000
> To investigated this behavior somewhat further on I've installed
> NetBSD-current on a machine with a Radeon HD3000 graphics adaptor using
> KDE-4.4.4 from pkgsrc-current. Even there I see those problems with
> distortion and invisible panel. (I've tested both radeon and radeonhd.) So
> assume that this effect is not Intel specific. It's more an issue of the
> interaction of KDE4 and the EXA-acceleration.
> I agree that it does not really make sense to switch to XAA by default. At
> least in the case of the Radeon driver only EXA acceleration is available.
i see some corruption on a radeon hd 4670 card with konqueror menus, that
goes away with i disable radeondrm. however, then the card performance
is absysmal there, and i have no Xvideo.
i bet this is the same problem. it's on my list of things to deal with.
thanks for testing all these combinations and reporting the results.