There is some messages about the keyboard outputted to stderr when running startx, which do not appear in the log file above, so I'm attaching this as well. I hope it is of use.
** Attachment added: "Errors from startx" http://launchpadlibrarian.net/14984027/startx_log -- Xorg has slow mouse movement when keys held down https://bugs.launchpad.net/bugs/236630 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
