Please stabilize x11-drivers/nvidia-drivers-295.53 / 295.59. 295.59 is newly out so I understand if you don't want to do that. It corrects small issues and adds hardware support. 295.53 is out for more time and corrects definite issues. Basically stabilize one or both.
amd64 ok for both
both stable on amd64, thanks Maurizio
bBoth stable on x86. Last arch, closing.