What to do if external monitor is blank or unstable on Fujitsu LIFEBOOK U904?
- BBrian RomeroSep 9, 2025
If the external monitor connected to your Fujitsu Laptop is blank or the image is unstable, terminate the application program in Windows by pressing Alt + F4. If the fault persists after closing the program, use the key combination for switching the screen output to switch over to the notebook’s LCD screen. Change the screen resolution and select the correct monitor (monitor 1 or 2) as described in the documentation for your operating system.














