Troubleshooting steps
Using the Monitor Self-Test
The monitor provides a self-test feature that allows you to check whether your monitor is
functioning properly. If your monitor and computer are properly connected but the monitor
screen remains dark, run the monitor self-test by performing the following steps:
1.
Turn off both the computer and the monitor.
2.
Unplug the video cable from the back of the monitor. To ensure proper Self-Test
operation, remove all digital (white DVI connector) and analog (blue VGA connector)
cables from the back of the computer.
3.
Turn on the monitor.
The floating dialog box should appear on-screen (against a black background) if the flat panel
display cannot sense a video signal and is working correctly. While in self-test mode, the power
LED remains blue. Also, depending upon the selected input, one of the dialogs shown below will
continuously scroll through the screen.
