Indeed, switching to XAA seems snappier than EXA. I hadn't noticed the change because I was using a custom xorg.conf file around the time when EXA became the default.
I'm not sure there's much point in trying with EXA again in Karmic, assuming that EXA is still default and will still be slow.
However, it might be useful to have the driver not enter EXA mode on hardware with little video RAM...
Indeed, switching to XAA seems snappier than EXA. I hadn't noticed the change because I was using a custom xorg.conf file around the time when EXA became the default.
I'm not sure there's much point in trying with EXA again in Karmic, assuming that EXA is still default and will still be slow.
However, it might be useful to have the driver not enter EXA mode on hardware with little video RAM...