Dell S2721HGFA User Manual page 52

4. This box also appears during normal system operation if the video cable becomes
disconnected or damaged.
5. Turn off your monitor and reconnect the video cable; then turn on both your
computer and the monitor.
If your monitor screen remains blank after you use the previous procedure, check your
video controller and computer, because your monitor is functioning properly.
52 | Troubleshooting
Dell 27 Gaming Monitor
No HDMI 2 Cable
2
The display will go into Standby mode in 4 minutes.
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S2721HGFA