Still no luck with the latest nvidia driver 346.47! As soon as I use the driver nouveau, there is no problem, no high memory usage of kwin/xorg processes or graphics memory.
Furthermore I have tested a fresh installation with Kubuntu 14.04.2 Install-DVD with a complete wipe-out of all partitions of the SSD , but the problem occurs there too. -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kde-workspace in Ubuntu. https://bugs.launchpad.net/bugs/1402551 Title: High memory usage of Xorg and kwin after Xorg security updates [nvidia] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kde-workspace/+bug/1402551/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs