Why does my TV say no signal when HDMI is plugged in?
The “no signal error” on a TV is due to using the wrong HDMI cable, a faulty graphics driver or a damaged HDMI port.
Table of Contents
A “no signal error” on a television can occur because of the following:
- Faulty chipset
- Faulty graphics drivers
- Incompatible HDMI cable
- A damaged port
- A faulty amplifier in case of non-HDMI devices
- Poor connection quality
- Lack of selection of input sources in TV
- A software bug
We use HDMI so that we can experience high definition videos along with high definition audio.
HDMI or High Definition Multimedia Interface is the most used signal cable to connect various devices such as Digital TV, Blu Ray player, DVD player, PlayStation, Xbox, etc. One uses this HDMI cable to transfer high-quality digital audio and video between devices.
Being a versatile and effective cable, HDMI is also used in PCs and laptops. It is beneficial when the matter is about displaying high-quality videos—for example, education presentations, retail displays, etc.
Many users reportedly complain about no signal issues when HDMI is plugged in the TV or any other device. When the TV is showing no signal message that means it is unable to get any signal from external input or the selected signal source.
Here I am going to talk about multiple solutions and try my best to help you fix the issue. But first, you need to know how to connect HDMI to your TV because maybe somehow your HDMI is not connected correctly with your TV, which is why you are getting no signal message.
So follow the simple steps and connect HDMI to your TV correctly at first.
- Find out the HDMI port on your TV. New generation TVs have a minimum one full-size HDMI port, i.e., 13.99 mm X 4.45 mm. These ports are typically named or labeled as HDMI, but if your TV has more than one HDMI port, then there must be HDMI 1, HDMI 2, and so on. In this case, plug your HDMI cable to the number one spot.
- Make sure you have the right HDMI cable. Usually, TVs have the standard sized HDMI port, which is the Type-A port and 13.99 mm X 4.45 mm in size. Check if you need a different type of cable like Type C, or Type D. Type C is the Mini HDMI, and Type D is the Micro HDMI.
- Now turn on the device and connect The End of the cable to the device. Make sure you are inserting the cable gently. Otherwise, the port can be damaged, and you may be getting no signal because the port of the other device is damaged.
- Then turn on the TV and connect the HDMI cable security if your TV has multiple HDMI ports then connected to the number one port.
- Now switch to the HDMI source on your TV. Trace the source or input button on your TV remote and then select the HDMI port. If you can’t find the HDMI option, that means you have to try more than once. This can happen if your TV is getting a little longer to recognize the HDMI cable. Select the right port number from the list. Now you should see the device’s image on your TV screen.
- If you want to make sure the audio will come correctly through the TV speakers, then you need to configure your device’s sound through the TV.
If your TV has the HDMI port, but the device with which you want to connect your TV does not have an HDMI port, then you can use an HDMI adapter that can easily convert any other existing port to HDMI.
You can only convert the port into HDMI Type A. You will not be able to connect different types of HDMI cable with a Non-HDMI device.
Solutions if getting No Signal message after connecting to HDMI
Enable HDMI connection
Before plugging the HDMI cable in, make sure you have enabled the HDMI connection setting. Open the settings of your device, find Display Entries, and the HDMI connection.
It’s possible that you cannot find the options as mentioned earlier in the settings. In that case, move on and follow the next solutions.
Change the Input Source
There must be an Input or Source button on your remote. Press the button, and you will see a list of several input options. Select the HDMI port. If you see more than one HDMI port, then make sure to select the number one HDMI port.
Update the graphics drivers and chipset drivers
Faulty graphics drivers and chipset drivers may cause the issue you are facing. You may see good results after updating the drivers. But you need to have specific computer skills and a little patience to update the drivers manually.
Unplug and then plug in the power cable of the TV
This is the most typical solution to any kind of signal issues. And trust me, it works every time. Unplug the power cable of your TV, and after a few seconds or a minute, plug the cable back in.
Disconnect all HDMI sources and connect them again one at a time
The solution will work from them who have multiple HDMI sources connected. But if your TV is connected with one HDMI source, then you skip the solution.
- Unplug all the HDMI ports from your TV
- Don’t forget to unplug the power cable from your TV. Unplug it and leave it like that for about 10 minutes
- Now plug in the power cable in the TV
- Plug any one device to the HDMI port of your PC
- Now turn the device on
- Repeat the above steps for 5 to 6 times for every device and HDMI port
Thr factory reset can solve the issue. Of course, you don’t want to try this at first, which is why I am suggesting you perform it after applying all the other methods.
Reasons why the HDMI port is not working on your TV
Getting a no signal message means the selected signal source of your TV is unable to get any signals from an external input source. There can be multiple reasons behind it;
- Not selecting the correct HDMI settings
- Maybe you have selected the wrong HDMI cable.
- If you are connecting a non-HDMI device, then only HDMI type A cable will work. Even then, the amplifier can turn out faulty. Check them.
- The graphics and chipset drivers may be outdated.
- If you did not switch the input sources, then your TV will not get signals.
- Unplug and plug in the power cable and the HDMI cable in a little gap because your TV or the device may take a little longer to read the HDMI signal.
- Somehow the ports can be damaged. It may be very little damage, which is why you are not able to see that, ask a professional, and then plug-in your HDMI cable.
What do you do when your HDMI says no signal?
Here are some troubleshooting tips you may perform in this situation.
Check HDMI connections
It’s possible then that the HDMI port may be connected previously with another device. For example, maybe you have connected the HDMI port before with the computer. And somehow now that port thinks the other device like your computer so reset the settings while plugging in the HDMI cable.
Check resolution output settings
Maybe your HDMI source device has its video resolution output settings set to auto. Change it and try to match EA to your TV’s resolution.
Switch to HDMI source
Maybe you forgot the signal source after plugging the HDMI cable. Press the source or input button of your TV remote and change the source at first.
Reinstall chipset and graphics drivers for update them
Maybe your device drivers are outdated. Update them, and the problem will be fixed.
Change the turning on sequence
Try a different turn-on sequence. For example, maybe you are turning on your TV every time while connecting HDMI, now try the whole process by turning the other device on at first.
Samsung TV keeps losing HDMI signal
The HDMI signal of Samsung can be losing for many reasons, but remember the fault is not on the TV. You need to perform just a few troubleshooting, and it can be fixed.
How to fix it:
- At forest disconnect, all the HDMI sources you have plugged in.
- Unplug the power cable from your TV for at least 10 minutes.
- Now plug it in.
- If your TV has multiple HDMI ports, then connect them one at a time.
- Now turn on the input device
- Follow the steps and repeat them for 4 to 5 times with each HDMI port.
LG TV keeps losing HDMI signal
The main reason behind the no signal message on the LG TV is because the TV is unable to detect any signal from the HDMI source device.
- Check the HDMI settings and make sure everything is right
- Make sure the HDMI source device is powered on
- Security inserts the cable in the correct port
- If you see no signal message again, reboot the external device.
- Unplug the HDMI cable for a few seconds and plug it back in when rebooting is complete.
- If still, it is not working, then check the HDMI cable with other devices. If then it is working, your HDMI cable is ok, but the fault is in the other external device. Update its drivers and later try it again.
Vizio TV keeps losing HDMI signal
Losing signal is the indication that you are not plugging the HDMI cable correctly, or your Vizio TV is facing some issues while connecting to the HDMI cable. You can perform some simple troubleshooting to make it work.
- Unplug the TV’s power cable
- Press the TV’s power button and hold it for 30 seconds
- Now connect the HDMI cables again to the HDMI ports on the TV
- Now plug the TV’s power cord back in
Sony TV keeps Losing HDMI signal
The Sony Smart TV HDMI main is not working because of a bad connection. There can be various reasons behind it, which is why you need to perform a few troubleshooting steps to fix the problem.
- Make sure the Sony TV is connected to the right video input. Press the input button on the remote and select the HDMI input. If the option is not showing, then press the button repeatedly until it is displayed on the TV screen.
- If the cause is a bad connection, then it can be fixed by disconnecting and then reconnecting the HDMI cable.
- Make sure your TV firmware is up to date.
- Check if all the HDMI ports are ok.
Apple TV keeps losing HDMI signal
HDMI problems are not very serious and can be resolved quickly. If some of you are unable to fix the problem, then you can contact Apple’s technical support team.
- Press the reset button in the TV settings and reboot the Apple TV
- Unplug the HDMI cable and replug is security to the TV.
- You need an HDMI cable, which allows larger data transfer, which is approximately 21gbps.
- Reset the Apple TV and update the software to the latest version.
- Check if the HDMI cable is not compatible with your Apple TV. Get a new one and try the process with that.
- Unplug the power source of the input device and connect the cable with it after a few seconds.