Do not panic or force-shut down your PC. It is completely normal for the display to flicker or go black for up to 30 seconds while the old display driver is uninstalled and the new one initializes. Rolling Back a Problematic Driver
if you are currently experiencing issues. lenovo thinkcentre neo 5 drivers download
Resolves display flickering, enables multi-monitor support, and improves video playback rendering. Do not panic or force-shut down your PC