On Nov 24, 2014 6:25 AM, "Ludovic Courtès" <ludo@gnu.org> wrote:

Currently the easiest way to get X running is to use ‘slim-service’:

  http://www.gnu.org/software/guix/manual/guix.html#X-Window

Add it to the operating system declaration, like:

  (operating-system
    ;; ...
    (services (cons (slim-service) %base-services)))

Then ‘guix system reconfigure config.scm’, restart, and the system
should get straight to the graphical log-in screen (SLiM).

HTH!

Ludo’.