I had GLX (utah-glx) working under XFree 4.0.1. Then I downgraded back to 3.3.6 (by symlinking the X directories to their backup copies). I've got
Section "Module" Load "/usr/X11R6/lib/modules/glx.so" EndSection and Option "no_font_cache" Option "no_pixmap_cache" in the "Device" section, and /etc/X11/glx.conf is the same as before, but no go: X starts up with no mention of the glx module being loaded. (Incidentally, the utahglx page at sourceforge says utah-glx will work with 3.3.6 and not 4.0.1, but for me it seems to be the other way around!) Now, I'm pretty sure that before upgrading X, the glx module was being loaded. I just didn't know how to test it. Now I test it with bubble3d from xscreensaver-gl. Works under 4.0.1, segfaults under 3.3.6 (not surprising since by all appearances the glx module isn't loaded, though a segfault seems like a lousy way to die). I have rtfm'd to the best of my abilities. Anybody guess what I'm forgetting? I'm posting this here as well as in an X newsgroup because I have been almost exclusively running debs of the relevant software. Most recently the utah-glx debs found via freshmeat.net. I don't really understand the relationship between Mesa, GLX, utah-glx, glutg3, and so on. If you have glx working, tell me which debs (or tarballs) you installed from. -chris
