Hmm, in your logs the drmSetVersion() failed message occurs *several* times, not just once as could simply be explained. However, it does confirm that the right ddx driver is being loaded which is what I first thought the issue would be.
Can you please attach glxinfo? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1103236 Title: Choppy and pixelated video on Macbook Air 5,1. Unable to run/view HD videos at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1103236/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
