QPixmap::handle(): Pixmap is not an X11 class pixmap

[Wolfgang Rohdewald]

since updating to kubuntu 11.04 I am getting this message
while KApplication is created, but only if I use raster or opengl
as graphics system:

kpat --graphicssystem raster
QPixmap::handle(): Pixmap is not an X11 class pixmap

this seems to happen with all KDE programs.

Any idea?

kdelibs 4.6.2
qt 4.7.2

-- 
Wolfgang