I used version 24.3.1 before. Some my script run emacsclient -c
by the schedule when monitor is off to save power: everything was ok. But there is a problem with new version 24.4.1 - emacs freezes until the monitor is on (by keboard or mouse) and only after that it wakes up and creates frame.
GNU Emacs 24.4.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.4.2) of 2014-10-21 on kairos
Linux kairos 3.7.0-030700-generic #201212102335 SMP Tue Dec 11 04:36:24 UTC 2012
Ubuntu 12.04 64 bit