On the computer, select a lower screen resolution, then check if the image is output correctly. When the TV has another HDMI port, connect to it and check if the image is displayed correctly. … If changing the cable solves the problem, the original HDMI cable may have a problem.

Also Why does my TV say no signal when HDMI is plugged in?

Verify that the source device has power and is turned on. If the source device is connected with an HDMI® cable: Make sure the TV and source device are both turned on, then disconnect the HDMI cable from one of the devices and then connect it again. … Try a new or another known working HDMI cable.

Subsequently, What do you do when your HDMI says no signal? Solution 2: Enable the HDMI connection setting

If you want to connect your Android phone or tablet to the TV, make sure the HDMI connection setting is enabled on your device. To do it, go to Settings > Display Entries > HDMI connection. If the HDMI connection setting is disabled, enable it.

How do you fix a TV that says no signal?
Reset the box

  1. Turn everything off at the wall.
  2. Check that all cables are securely and firmly in place.
  3. Wait for 60 seconds.
  4. Plug your TV box (not the television set) in and turn it on.
  5. Wait another 60 seconds, or until the lights on the TV box have stopped flashing.
  6. Plug everything else back in and turn it all back on.

What do you do when your TV says no signal?

Most problems can be resolved by sending a refresh signal to your Spectrum Receiver. You an also try to reboot your receiver by unplugging the power cord and allowing at least 60 seconds before plugging it back in. Allow at least 20 minutes for the receiver to fully recover and then turn it back on.

Why is my monitor not picking up HDMI?

If your HDMI connection is still not working, it’s likely there are hardware issues with your HDMI port, cable or your devices. … This will resolve any problems you might be experiencing due to your cable. If changing the cable doesn’t work for you, try your HDMI connection with another TV or monitor or another computer.

Why is my TV suddenly saying no signal?

Check the cable connections between the TV and your video device or receiver. Change the channel or try a different input device or movie. The received signal may be weak. If your TV uses a cable or satellite box, you may need to contact your service provider for further assistance in improving the signal strength.

What does it mean when your TV keep saying no signal?

A “No Signal”, “No Source“, or “No Input” message will appear on your TV screen if the TV is not receiving a signal from your TV box. This is often a result of either the TV box being powered off, not being properly connected to the TV, or the TV being set to the wrong input.

Why has my TV suddenly lost signal?

Check the cable connections between the TV and your video device or receiver. Change the channel or try a different input device or movie. The received signal may be weak. If your TV uses a cable or satellite box, you may need to contact your service provider for further assistance in improving the signal strength.

How do I reset my TV?


How to perform a Factory data reset

  1. Turn on the TV.
  2. Press the HOME button on the remote control.
  3. Select Settings.
  4. The next steps will depend on your TV menu options: Select Device Preferences — Reset. …
  5. Select Factory data reset or Reset.
  6. Select Erase Everything. …
  7. Select Yes.

How do I get my channels back on my TV?

Press the “Menu” button on your remote control. If you don’t have a remote, your TV should have a built-in “Menu” button. Find and select the “Channel Scan” option in your TV’s menu. This option is sometimes labeled “Rescan,” “Tune,” or “Auto-tune.”

Why am I getting no signal on my monitor?

A no signal error on a monitor could be a sign that your PC monitor is ignoring the graphics output from your PC. This can sometimes happen if the input source on your monitor is set to the wrong device. Most display monitors have multiple input sources available, including VGA, HDMI, and DVI inputs.

Why does my monitor say no signal when computer is on?

A loose connection between your monitor and your PC will trigger the monitor no signal issue. If you’re seeing the no signal message on your screen when your Windows system is running, the first thing you should check is whether your compatible video cable is firmly connected or not.

Why is my monitor not detecting my computer?

In particular, ensure your monitor is plugged into the wall and receiving power, and double-check that the cable going to your PC is firmly plugged in at both ends. If you have a graphics card, your monitor should be plugged into that, not the HDMI port on your motherboard.

How do I get my TV back on cable?

  1. First, turn off the power on the TV and unplug it.
  2. Then pull out the HDMI cable from either the box or the TV (doesn’t matter which).
  3. Plug the TV back in and turn it back on.
  4. Finally, plug the HDMI back into HDMI 1 and make sure the TV is on the HDMI 1 input channel.

How do you do a hard reset on a smart TV?


1 Factory Reset

  1. Power on your TV.
  2. Press the Menu button.
  3. Select Support, then Enter.
  4. Choose Self Diagnosis, then Enter.
  5. Select Reset, then Enter.
  6. Enter your Security PIN. …
  7. The factory reset screen will show a warning message. …
  8. During the process, TV may turn off and on and will display the Setup screen.

How do I reboot my Smart TV?


Reset the TV with the remote control

  1. Point the remote control to the illumination LED or status LED and press and hold the POWER button of the remote control for about 5 seconds, or until a message Power off appears. …
  2. The TV should restart automatically. …
  3. TV reset operation is complete.

Why have all my TV channels gone?

Missing channels are typically caused by antenna or set up faults. Please check that you’ve got your antenna cable connected properly to your TV, set top box or PVR.

Why do my TV channels keep disappearing?

Installation issues, poorly maintained antennas, and other interference issues could be why your TV channels keep disappearing. If you suddenly lose a channel, the first thing to do is try to re-scan for channels on your TV.

Why is my antenna not finding channels?

It is important to check regularly for corrosion, loose cable fittings, or if a cable has been compromised. … Try disconnecting the splitter and running the cable directly into the TV/converter box and run a channel scan. If reception improves, a distribution amplifier is likely to be the solution.

How do I fix my monitor not displaying?

Check the power light of your monitor to verify that it’s turned on. If your monitor won’t turn on, unplug the power adapter of your monitor, and then plug it back into the power outlet. If the problem still exists, you need to bring your monitor to the repair shop.

How do I reset my monitor?


How to reset the LCD monitor to the default settings.

  1. On the front of the monitor, press the MENU button.
  2. In the MENU window, press the UP ARROW or DOWN ARROW buttons to select the RESET icon.
  3. Press the OK button.
  4. In the RESET window, press the UP ARROW or DOWN ARROW buttons to select either OK or ALL RESET.

Why is my hdmi not working?

Turn off all the devices. Disconnect the HDMI cable from the HDMI Input terminal on the TV. Disconnect the HDMI cable from the HDMI Output terminal on the connected device. … If the issue continues, repeat the process but try a different HDMI input on your TV to see if this improves the situation.