We are facing a problem going to suspend mode when a capacitive touch is connected to USB.
The problem is present with two different devices (& drivers) and it happens either pressing the suspend button on main menu, either when we call SetSystemPowerState() from our application.
After the call to suspend mode the system appears frozen. LEDs on Iris carrier remain switched on.
A deadlock in touch driver was the first suspect, but when we have noticed the same behavior on a different touch device we have directed our attention to the OS. See attached screenshots for debug info captured with the two different touch devices.