Windows 8.1. bug with 7.4m2 doesn't permit connected standby

[tuath]

unfortunately, I cannot reinstall the displaylink software on the tablet as it is being used in active development and out of my reach for the coming weeks.

You can diagnose the problem by doing :
powercfg.exe /sleepstudy

on a computer with Windows 8.1 x64 RTM that supports connected standby. I do not know if this is a "acer iconia" thing or if it would be reproducible on another connected standby system such as a MIcrosoft Surface.

I have attached the log file out powercfg, the system goes from consuming an avg of 500 mW or power to 61 mW at the point in time where I have removed the Displaylink driver.