Why is my computer screen 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.
How do I fix a black screen with HDMI?
Unplug the power cord from your digital box, wait for 30 seconds, then plug it in again. Wait until the box has fully powered on again, then see if the picture has returned. If that doesn’t fix it, If you have an HDMI cable connected to your TV, you could try an HDMI handshake.
Why does my laptop screen go black when I plug in 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.
How do I get my laptop screen on when connected to HDMI?
How to Use HDMI Out on Laptop to Exernal Monitor
- Plug the monitor’s HDMI cable into a flat HDMI port on the right or left side of the laptop. Make sure the other end is plugged into the display.
- Plug the monitor into an electrical outlet and turn it on.
- Configure the display in Windows.
Why does my second monitor go black?
Simply put: both DVI and HDMI are digital signals; if the signal is too weak, the monitor won’t sync to the computer, resulting in a blank screen. Assuming that the cables are plugged in securely, power on the monitor and check to see if the monitor keeps going black.
Why does my second monitor go blank?
If the second monitor’s screen is also blank, it could be a video cable issue. If you have multiple connection options such as DVI, HDMI, etc., try replacing the video cable or using a different video cable. If VGA works, then there may be a problem with your HDMI or DVI cable.
How do I fix my HDMI not working on my laptop?
Part 2: What to Do If HDMI Port not Working on Laptop?
- Check your Hardware.
- Restart and Reconnect your Devices.
- Set your HDMI Device as the Default Device.
- Remove Recently Installed Software.
- Configure your Computer’s Display Settings.
- Update or Reinstall your Graphics Driver.