I've the same issue (with the same log output). I'm on a Nvidia integrate card and the bug happens both with and without using Compiz. It seems to me that it happens mostly (maybe only, I'm not sure) when I press the enter key when writing in a text box on Firefox.
-- 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/765136 Title: [natty] X often crashes since upgrade to natty _______________________________________________ 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