When you start the car, and the actuator pulls inwards, rev the engine quite heavily. You should see the actuator swing towards the passenger side of the car to control the boost as it reaches 2 bar, and the hose from the intercooler to the inlet manifold "blow up" under boost pressure, and the actuator should pull in again upon return to tickover.
Any loud hissing noises and black smoke from the exhaust indicate a leak of boost pressure, from a burst hose or damaged intercooler?
The actuator pulled in and no increase in boost with engine revs, would suggest a defective turbo, stuck vanes maybe? With the engine switched off, take the hose off the silver end, look inside and see if you can spin the spool, and that it doesn't have excessive movement up and down?