This is a common question for the 1080Ti. These cards weren't out when the Amplifier was released, therefore it is not 100% compatible with it. Specifically, MSI and ASUS cards tend to show this behavior. Unfortunately, this is the expected behavior for that setup.
Also remember that the driver that must be installed is the laptop's video card driver, not the amplifier's video card driver.
Dell | Alienware Technical Support
Opening your case does not void your warranty! Check out Alienware Artificial Intelligence
I can't always reply to PM's, if you need extra assistance visit: