I have two computers, both using nvidia driver. My laptop started flawlessly, after I renamed empty file modprobe.conf.pacsave to modprobe.conf in /etc/modprobe.d/ On my desktop computer, all went bad. udevadm trigger doesn't work. I had to downgrade both packages (kmod replaced by modules-init-tools) and mkinitcpio, blacklisting both of them in my /etc/pacman.conf ignorepackage line. My /etc/modprobe.conf is not empty : # # /etc/modprobe.d/modprobe.conf (for v2.6 kernels) # blacklist keucr blacklist usblp For now, I'm blocking upgrade for both package. I opened a bug on archlinux BTS : https://bugs.archlinux.org/task/27846 I know testing can be busted sometimes, but this bust is one the worst I've seen for a year or so. -- Frederic Bezies fredbezies@gmail.com