Turning on "Force full screen redraws (buffer swap) on repaint" resolved the flickering - yay! I attached a screen shot of the setting.
** Attachment added: "workaround setting for flickering" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1314367/+attachment/4185320/+files/CompizConfigSettingsManager_608x990_14.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1314367 Title: Flickering with Ubuntu 14.04 and nvidia card reappeared To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1314367/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs