What does ghost display mean? Is mechanical not opening on your primary display? If you were working on multiple screens, and display has been set to "second screen" only. Once you disconnect the additional screens, sometimes apps still open in those screens. Is this the same case? To overcome this, make sure you switch back to PC screen, when you're disconnecting additional screens. Or go to taskbar, hover on mechanical icon, a small preview will pop up just on top of it. Right click on the preview, and click on restore button.