Dave Jones wrote:
probably you have selected IOMMU, which is dependant on it.
Yes, thanks. Sorry my fault. I had it not deactivated, arggg.
This surprises me, especially considering the in-kernel nvidia-agp driver was actually written by NVidia. Are there any agp error messages in your dmesg / X log ?
No warnings/errors in both logs. All clean. But switching/maximizing between tasks like firefox, thunderbird or a gnome-terminal is so slow, that you can see it how firefox/GTK+ theme is writing the GUI and the fonts slowly back. Minimizing is no more fun, like a fast slide-show. And that on a fast amd64 3200 with 1 GB RAM and a FX 5900XT. :(
With the nVidia own nv_agp it appears directly in all apps, very fast under GNOME 2.8.1. Why, I do not know. Also game (opengl) performance is faster with the nv_agp, that I haven't used the kernel agp for months, now.
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