One more thing, has anyone tried to suspend the system? Suspend to RAM to be particular.

For my configuration, suspending and resuming all works, but it seems that proximity sensor keeps working and will force the kernel to resume if it catches any "input".

I have been googling for a while and didn't seem to find a good solution. No one has mentioned how to tell the kernel to suspend input devices upon suspending to ram, or ignoring some input events that could cause the kernel to wake.