Hi Dave, I've managed to capture the output of top on my machine while having console window open. You will see at some point Xorg and firefox at crazy CPU load and then Xorg for some times completely vanishes from the list and firefox drops to zero load.
I hope this helps? ** Attachment added: "captured output of top" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1205633/+attachment/3753566/+files/top.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/1205633 Title: Xorg stalls out the whole system when surfing with firefox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1205633/+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
