I also experienced a GUI crash with the lattice screensaver on what lspci reports is a "ATI Technologies Inc RV370 5B60 [Radeon X300 (PCIE)]".
Fortunately, my system didn't do a hard hang, and I was still able to use an existing SSH session to manage the box a little and determine which process had hung the X server. Unfortunately, neither killing the lattice process nor the X server was able to bring the GUI back to life, so I had to shut down the box. I would reiterate a comment that has been made on the Freedesktop.org bug: Please, please, please use the xscreensaver-gl and rss-glx screensavers as test programs to ensure that video drivers and mesa libraries are functional before releasing updates. People like pretty screensavers, so they get enabled on *lots* of boxes in the real world, so any bugs that get triggered by them will affect many, many people. Thanks. -- Screensaver 'lattice' causes immediate Xorg freeze/crash https://bugs.launchpad.net/bugs/361649 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