I can confirm Yulianto´s comment that disk-I/O is rising very high as well.
My system has almost the same properties that Nathan´s has. I will provide more Informations about my system if needed. -- 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/1001550 Title: LibreOffice Calc causes high CPU usage in Xorg when displaying "marching ants" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1001550/+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