HP Pavilion dm4-1018tx Entertainment Notebook PC - Manual (Page 47)

▲ To connect a display device, connect the device cable to the external monitor port.
NOTE: If a properly connected external display device does not display an image, press f4 to
transfer the image to the device. Repeatedly pressing f4 alternates the screen image between the
computer display and the device.
Connecting an HDMI device
The computer includes an HDMI (High Definition Multimedia Interface) port. The HDMI port connects
the computer to an optional video or audio device, such as a high-definition television, or any
compatible digital or audio component.
NOTE: To transmit video signals through the HDMI port, you need an HDMI cable (purchased
separately).
The computer can support one HDMI device connected to the HDMI port, while simultaneously
supporting an image on the computer display or any other supported external display.
Video 37