Updating to libXext 1.3.3 should solve the problem. That warning message was removed in this commit: http://cgit.freedesktop.org/xorg/lib/libXext/commit/?id=11aad96bd689d54156064d2e81213dc827a689d1
and that commit released in 1.3.3 (look at the comment from Keith Packard): http://lists.freedesktop.org/pipermail/xorg/2014-July/056771.html -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1369113 Title: Steam game began crashing 2014-09-12 (cross-post Source bugtracker) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/steam/+bug/1369113/+subscriptions _______________________________________________ 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