Hello,
Have you experienced problems with iNTEL i7 / Q77 devi-hid driver in SMP configuration.
If we start ph utility, system hangs  at "Waiting for input driver"  displaying login windows.
If we start photon manually (actually : io-display, io-graphics, pwm, bkgdmgr , etc) all works fine until we try to 
start "devi-hid mouse". At this time the system hangs.  

If we don't start the SMP kernel, we don't have this kind of problem (ph starts without any problem) 

Any idea ?