I noticed the refcount patch was applied in natty and can confirm logging out has been working fine in natty for the past couple of weeks.
xorg-server (2:1.9.99.902-2ubuntu1) natty; urgency=low ... * 215_glx_drawable_refcounting.diff: - Refcount GLXDrawables to avoid use-after-free crashes. Patch from xorg-devel mailing list. Prevents segfault on logout and server regenerate, and possibly other times. (LP: #711422) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. https://bugs.launchpad.net/bugs/651294 Title: X crash on KDM logout (still - yes, really) _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp