I've that problem too. If I disable Anti-Aliasing in libreoffice calc CPU don't go to 100% when I have an active selection.
Anyway: lsb_release -rd && apt-cache policy libreoffice-calc xorg && lspci | grep VGA Description: Ubuntu 11.10 Release: 11.10 xorg: Installed: 1:7.6+7ubuntu7.1 Candidate: 1:7.6+7ubuntu7.1 Version table: *** 1:7.6+7ubuntu7.1 0 500 http://pt.archive.ubuntu.com/ubuntu/ oneiric-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ oneiric-security/main amd64 Packages 100 /var/lib/dpkg/status 1:7.6+7ubuntu7 0 500 http://pt.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages libreoffice-calc: Installed: 1:3.4.4-0ubuntu1 Candidate: 1:3.4.4-0ubuntu1 Version table: *** 1:3.4.4-0ubuntu1 0 500 http://pt.archive.ubuntu.com/ubuntu/ oneiric-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:3.4.3-3ubuntu2 0 500 http://pt.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages 01:00.0 VGA compatible controller: nVidia Corporation G84 [GeForce 8600 GT] (rev a1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/947833 Title: When copying selection to clipboard in LibreOffice Calc 'X' process begining to eat 100% cpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/947833/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs