I can confirm the same issue with my system, using an NVIDIA 660 GTX, running Mint 17 with Nvidia drivers 331.38. Turning off FXAA didn't work for me. None of the settings made a difference. The only thing worked was removing the NVIDIA settings file as suggested by xavier zinn. Now everything seems to be running flawlessly.
Delete .nvidia-settings-rc you find it by doing a ls -al (it shows the hidden files/directories) All I did was find the nvida-settings file and deleted it. Log out and log back in, and all should be good. The file gets recreated. ** Attachment added: "bug report, after deleting nvidia settings" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331-updates/+bug/1309595/+attachment/4141761/+files/nvidia-bug-report.log.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1309595 Title: Blur in 14.04 lts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331-updates/+bug/1309595/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs