I found that you don't need uninstall fglrx (or nvidia, as that driver will ship its own libGL as well) to use mesa libGL again - you can use
sudo update-alternative --set gl_conf /path/to/ld.so.conf To see the available GL configurations, run update-alternatives --list gl_conf For example, if you run one of the open source drivers such as intel, radeon or nouveau, update the gl configuration alternative to the mesa configuration. sudo update-alternative --set gl_conf/usr/lib/mesa/ld.so.conf Or, if you run fglrx run sudo update-alternative --set gl_conf /usr/lib/fglrx/ld.so.conf Nvidia ships its own GL configuration alternative, which works the same. After doing so, you need to run sudo ldconfig to reconfigure the dynamic linker run-time bindings. It may be better to do so when X is not running, as e.g. fglrx will crash if you switch to mesa while it is running. -- glxinfo crashed with SIGSEGV in XF86DRIQueryExtension() https://bugs.launchpad.net/bugs/555158 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