I am having the same issue on 13.04 running on a Sony VAIO S Series core i7, Intel HD 4000 Graphics.
Periodically I get a screen full of small square dots scattered over the entire screen. They appear randomly, for about a second, then are gone. Its not hardware; I dual boot windows 8, and I have no similar issue there. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/421048 Title: Black dots appear on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-180/+bug/421048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
