[arch-general] Blank screen in X after updating to latest nvidia and xorg-server

[João Miguel]

Note: I did try what is suggested in
https://wiki.archlinux.org/index.php/NVIDIA#Black_screen_on_systems_with_Intel_integrated_GPU
(since I have an Intel graphics card too), but it made no difference
with the latest versions and actually made the previous version of X in
combination with the latest nvidia go blank as well, instead of working.