As a tip...I believe this is caused by the integrated Intel video card. I had the same problem, and installed a nvidia card, and had no problems. Now I just have to wait for this other bug to be fixed:
https://bugs.launchpad.net/ubuntu/+bug/216854
As a tip...I believe this is caused by the integrated Intel video card. I had the same problem, and installed a nvidia card, and had no problems. Now I just have to wait for this other bug to be fixed:
https:/ /bugs.launchpad .net/ubuntu/ +bug/216854