Compaq 6500 Family manual Software or hardware

Troubleshooting

Problem Possible Cause Action

An external monitor is connected and is not working.

Loose or incorrect cable connections.

The notebook’s video mode may be in LCD Display Only mode.

Check all cable connections, including AC power.

Use the [fn] + [F4] key combination to switch to Simul Scan mode (simultaneously viewing both LCD display and External Monitor display) or External Monitor Only mode.

TV output is selected.	Check the Display settings in Control Panel
	and ensure TV output is not selected.

Monitor does not support multi-sync and/or higher resolutions.

	Monitor may be broken.
Notebook	Software or hardware
computer locks	configuration problem.
up.

Set the display output for External Monitor Only using the [fn] + [F4] key combination. Then set the Display settings in Control Panel to a resolution supported by the monitor.

If you attach a non-DDC compliant XGA monitor to the notebook, the system must also be set at XGA.

Verify that the monitor is in proper working condition by connecting it to another computer.

Reset the notebook computer by pressing the Reset Button located on the rear of the notebook computer (Figure 2-3), then restart the notebook. Unsaved data will be lost.

Check all software and hardware configurations.

Contact your Compaq support representative.

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