[Mark McLeod]

I haven't seen the same issues teams experienced last year with the Classmate XP sleep mode, but that can be due to the increase in laptop diversity making it less likely statistically.

With sleep mode there is a possibility that the USB joysticks/Cypress can get resorted and is something to check/verify when you wake it up.
Swapped controls can appear to the driver to be a lack of robot control.

I have also seen the problem from last year of overloading USB hubs with too many power hungry devices.
The devices either don't show up on the Setup tab or they show up but don't respond (they will turn blue when you press a button if they are working correctly).