I have the same issue. I've reproduced it with two different cards based on the nvidia 210 chipset. I'll attach my lspci -vvnn output below.
Environment: OS: Ubuntu 11.04 NVidia driver: 270.41.06 -- 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 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs