Comment 10 for bug 1123108

I have the same problem with Ubuntu 14.04 LTS. After installation Ubuntu, everything was fine. I restarted computer and things were still ok until the moment when I logged in. The unity became extremely slow. I unplugged a monitor, it went back to normal speed. I waited for a while (more than 10s), and plugged again. Now is a story of luck. Sometimes it worked, sometime not.