Sony PCG-VX89P - Manual (Page 177)

Troubleshooting DVDs and CDs
177
❑ If the display mode is set to external display (such as TV), press and hold the
Fn key while you press F7 several times.
Why don’t my changes appear on the computer (LCD) screen?
You may need to refresh the computer screen. Press the Windows key and press
the D key twice.