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Why does my screen go black when I connect another monitor?
If the screen is blank on the second monitor also, then it could be an issue with the video cable. Try replacing the video cable or using a different video cable if you have multiple connections options like DVI, HDMI, etc. If using VGA works, then it could mean there is an issue with your HDMI or DVI cable.
Why does my screen go black when I plug in HDMI cable?
If the screen looks stretched, or part of the screen seems cut off, you probably need to adjust the screen resolution in Windows. For more information, see Getting the best display on your monitor. Step 2: Try to enable and set the digital output HDMI device as default.
What does HDMI handshake mean?
One of the most notorious errors that can happen in this pathway is with the HDMI “Handshake.” The HDMI Handshake is the process of both the source (streaming device, UHD blu-ray, gaming console) and the sink (television, projector, monitor) recognizing each other and determining that they are both authorized to …
What steps would you take if the monitor is not showing any display or the screen is blank?
Before you begin troubleshooting a blank monitor
- Make sure the monitor has power and the power light comes on when the power button is pressed.
- If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor.
Why does my laptop screen go black when I plug it in?
When I booted my computer, my screen only shows on the external monitor. When I unplug the external monitor, the display goes back to the laptop screen. I have ran many diagnostics, updated the BIOS as well the display driver to no avail.
What should I do if my computer monitor goes blank?
Unplugging the monitor does nothing and the only way to use it again is to hold the power button to manually turn off. However, this only happens sometimes and not all of the time.
Why is my HP spectre x360 laptop screen black?
I’m using a HP Spectre x360 Convertible running Windows 10. If I connect my laptop to an external monitor using a HDMI cable the laptop screen flicks to black. The screen is still on but it’s completely black. Unplugging the monitor does nothing and the only way to use it again is to hold the power button to manually turn off.
Why does my laptop screen light up when I Turn on the TV?
No new software installed. There is one clue. I disconnect the TV monitor from the computer, boot up, choose duplicates to display. Then I connect the TV monitor to the computer. What happens, for about one second, is that both screens light up. What is going on?