I have had the exact same problem. I have a "nVidia Corporation NV17 [GeForce4 440 Go]" and so I have to use nvidia-glx-legacy.
Digging around in the Xorg.0.log I found this: (EE) GLX is not supported with the Composite extension So I added this section to my xorg.conf: Section "Extensions" Option "Composite" "Disable" EndSection and now glxinfo works finally. The solution would be patching the tool creating the xorg.conf to detect if you are running legacy drivers, would it? -- glx info crashes after nvidia-glx-legacy install https://bugs.launchpad.net/bugs/84574 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs