Update: I've just added
Section "Extensions" Option "Composite" "Disable" EndSection to my /etc/X11/xorg.conf and now glxinfo does not crash anymore. But I still get the errors in Xorg.0.log. -- [RV620] 3D acceleration doesn't work on HD4200 https://bugs.launchpad.net/bugs/664933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs