Here's something: The stutter occurs when using HDMI with my primary monitor, but not with my HDTV.
Monitor: Acer S231HLbid http://www.newegg.com/Product/Product.aspx?Item=N82E16824009255 TV: Samsung LN37A550 http://www.amazon.com/Samsung-LN37A550-37-Inch-1080p-HDTV/dp/B00141AZR2 The root cause must lay in the difference between these two products. There is no "stutter" with either product using Windows or Mac. So it's strictly a Ubuntu thing, rather than a flaw with the monitor's hardware. I think if we want to understand the problem, it's worth trying to pin down exactly what is different between these two displays. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/964231 Title: System Stutter When HDMI Monitor Is Connected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/964231/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs