Recently, I found this to be related to a bug in Xorg and not related to the proprietary driver. Similar symptoms were occurring in a recent build of 10.10. On a completely different hardware configuration using an Intel video chip. The issue was that Xorg would crash SOMETIMES when the enter key was pressed. It was very inconsistent. The reported problem was different because it would happen on ANY key press.
The solution was to disable a feature of x11vnc which was accessing a feature of Xorg which has a bug. # x11vnc -noxrecord See this forum post for reference: http://ubuntuforums.org/showthread.php?t=1612704 Apparently it's very serious because an X client shouldn't be able to crash the server. In addition, when this crash occurs, there is NOTHING in the log file which indicates that it crashed. The log file just ends. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/312168 Title: x11vnc causes xorg to crash on key press -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs