These two are related. I used the wrong package name for my bug report
The bug seems to be fixed with 2.1.2-1, at least I get those glxgears
again, but they are flickering a lot. Also scrolling on konqueror is
really slow... way slower than with 22.214.171.124-4. 2D-performance is greatly
lacking with this new driver (see debian bug 390626).
Also xorg hangs with this driver on logout (see debian bug 390630).