I don't have the core dump anymore but I kept the xorg logfiles of the two situations.
** Attachment added: "xorg logfile from live usb stick" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1299792/+attachment/4053517/+files/Xorg.good.log.txt -- 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/1299792 Title: Xorg dumping core on Hibrid graphics Intel+ATI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1299792/+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