Both my desktop and my laptop have very modern Nvidia video chips, operated with the "nv" X driver. They get about 0.5 frames/s in Celestia, but work fine doing everything I use them for, including driving a 1920x1200 monitor. Is Gnome abandoning me? Or are they assuming Nouveau will be mature before Mutter is, and abandoning everybody else without GL hardware support? Or might Mutter have a mode/theme that uses only GL features that can be faked efficiently?