How to resolve external monitor blank or unstable image on Fujitsu Siemens Computers Laptop?
- VValerie RodriguezSep 4, 2025
If the external monitor displays a blank or unstable image with your Fujitsu Siemens Computers Laptop, the wrong external monitor may have been selected, or the screen resolution may be incorrectly set for the application program. Terminate the application program in Windows by pressing Alt + F4. If the problem persists, switch to the notebook’s internal LCD screen using Fn + F4. Then, select the correct monitor or set the correct screen resolution.











