Unity says in terminal likely; " This is likely a bug in the X Server that will lead to a crash soon, Failed to make region for returned DRI2 buffer (668x16, named 0) " I think its a OpenGL execution error. I am tracking it.
My laptop specs; Acer Aspire 5742G 464G50Mn (includes Nvidia GT540M) Ubuntu 14.04 LTS Nvidia 337 driver and bumblebee. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1242115 Title: Black window borders, black terminal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1242115/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs