I have a laptop with an Intel 855 integrated graphics controller, and I'm using Mandrake 10.1. Mandrake autodetected the graphics card at installation and uses the i810 driver. The problem is that OpenGL doesn't work at all. glxinfo prints "name of display: :0.0" and then hangs. glxgears simply displays a black window as does any other OpenGL application.
I searched around and couldn't find anything useful.
I did however, find a post which describes exactly the same problem that I have. Looks like I'm not allowed to post the url as I have less than 5 posts, but it ends with "postid=1489185#post1489185".
My xorg.conf looks exactly like the one ajelston posts there (I haven't edited it). He says running modprobe i810 solved the problem for him, but for me it has no effect.
Thoughts on this? Ajelston, if your would happen to read this, did you do anything else than running modprobe that might have fixed it?