On my laptop I do *not* have this problem. It has the stable NVIDIA driver from the Ubuntu 14.04 repo, 340.96. My laptop has an NVidia Quadro K2000M.
My office computer *does* have the problem. It also runs Ubuntu 14.04 but has the NVidia driver installed with the NVidia CUDA toolkit, 352.63. It has a GeForce GTX Titan X card. I suspect there is some other installation problem with the office computer as sometimes when I ask the computer to "lock" it does not. Probably when 16.04 comes out I will try to reinstall the NVIDIA CUDA toolkit from a fresh install. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1292830 Title: Resuming from sleep makes black borders around windows appear To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1292830/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
