How about this:https://wiki.archlinux.org/index.php/Fan_Speed_Control
You don't want to merge them, you just want to replace one with a link to the other. `man ln`
`pacman -S linux-headers`
I just confirmed I get the same error here, so that rules out the most likely problems of not having package signing properly set up or a corrupted download.Refreshing the keys, however, solved it. `pacman-key --refresh-keys`
Have you installed xf86-input-synaptics?
or remove the x-systemd.automount ...
Is there a reason you're running that as root?