Try a different HDMI cable. Try connecting laptop to TV HDMI port. Answer from Gnkey on reddit.com
Reddit
reddit.com › r/techsupport › how do i check if my hdmi port works or not?
r/techsupport on Reddit: How do i check if my hdmi port works or not?
December 9, 2023 -
i try to connect my monitor to my laptop with hdmi but it doesn't detect it, i don't know if my hdmi port is the problem or something else, what can i do?
Sony UK
sony.co.uk › electronics › support › articles › 00030375
There's no picture on my TV when using an HDMI connection | Sony UK
While TV is ON and the device is ON, go to the HDMI input where the device is connected and test if TV is displaying a picture and if the sound is heard. If the issue persists, proceed to the next step. ... Disconnect and reconnect the HDMI cable. The bad connection may occur temporarily and ...
Videos
Samsung
samsung.com › home › product help & support › tv & av › my tv doesn’t detect a device connected via hdmi
My TV doesn’t detect a device connected via HDMI | Samsung LEVANT
Use a different HDMI cable to connect your external device to the TV. You can use the HDMI Cable Test function built into your TV to check for abnormalities in the connected HDMI cable, by following these steps:
Quora
quora.com › How-can-I-test-my-HDMI-port
How to test my HDMI port - Quora
Answer (1 of 3): The only way I know is to plug in a monitor of some kind and then try to play a video on that HDMI port. I have a small touch screen/monitor that use for this kind of test, it cost about $40.
Anker
anker.com › home › blog center › cables › how to fix hdmi cable not working on tv
How to Fix HDMI Cable Not Working On TV
February 5, 2025 - Select the Correct Input Source: Take your TV remote and press the INPUT or SOURCE button. Use the arrow keys or press the button repeatedly to cycle through the input options until you find the HDMI input where your device is connected. Check Your Device Settings: Turn on your source device and ensure its functioning properly. If it has a display, check if it shows any output.
All About Circuits
forum.allaboutcircuits.com › home › forums › datasheets & parts › technical repair
Diagnosing a possibly faulty HDMI plug | All About Circuits
December 9, 2023 - Some 25 years ago a friend got ... to hook it up but bent one of the connector pins causing a short circuit. Check your connectors for bent pins....
Sony
sony.com › electronics › support › articles › 00030375
No picture on my TV when using an HDMI connection | Sony USA
For example, it might send the signal from the HDM2 port while your video device is connected to HDM1. Make sure that the HDMI INPUT selected on your amplifier matches the HDMI INPUT on your TV. If the device is connected to an A/V Receiver or a different component before being connected to the TV, try connecting the device directly to an HDMI input on the TV. If the direct connection works, the issue may be that your receiver or component is not functioning as an HDMI repeater and is unable to pass the signal through to the TV.
LG USA
lg.com › us › support › help-library › lg-tv-how-to-test-an-hdmi-cable-connected-to-my-lg-tv--20153130670810
LG TV - How to Test an HDMI cable connected to my LG TV? | LG USA Support
Press the button on the TV remote and select [All Settings] → [Support] → [Quick Help] → [Check Items] → [Check The Status of TV] → [Check RF/HDMI] → [Start Diagnosis] → [Learn More].
Reddit
reddit.com › r/zephyrusg14 › how to check hdmi port is working or not?
r/ZephyrusG14 on Reddit: How to check HDMI port is working or not?
February 23, 2023 -
I have connected hdmi cable to my monitor and the monitor says "No signal". So I have bought a new cable to check if the cable was the problem, but I have the same result. Whenever I connect hdmi the monitor turns on and I also tried to change the project mode (always go back to primary screen only)0 which still did not work. I have no idea what is the problem. Anyone can help?, thank you
Top answer 1 of 2
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If you have a TV, try plugging into that to verify that the monitor isn't the issue
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I had issues too w my 2022 model, but only on one TV w hdmi 2.1 ports (Lg Oled B9), hdmi and dp monitors were fine. The Usb c to hdmi worked perfect even with the one 2.1 tv. First be sure 6700s-6800s is set to be on as i think hdmi port is wired to it. May still work if its off w hybrid graphics but anyhow. Next, if no signal, try lowering refresh rate a great deal, like to 30hz. This may emable u to get a display even if not optimal. This is only way i could get display on the one tv, no matter if i used old cables or a 4k 120hz certified one. Lastly, if no luck, get a usb c to hdmi adapter, even a cheap one should work in providing up to 1440 at 120hz. That also gives the option of plugging in either side, to dgpu or igpu. Sadly, and some will disagree but the evidence will speak volumes, i dont think the laptops port is truly 2.1, even though Asus is labeling as such. Its 2.1 in some way but not in the way that users think and not in the way that will give u 4k at 120hz.
ScreenRant
screenrant.com › home › tech › tech features › how to solve 'no hdmi signal' from your device
How To Solve 'No HDMI Signal' From Your Device
April 12, 2023 - Most TVs have multiple HDMI ports, and even if the source device and TV are connected to the HDMI cable correctly, choosing a different input can result in the error. To change the input, check your TV remote (not the one that comes with your Fire TV Stick, Roku, or Apple TV) and look for the 'Input' button (usually denoted by a box with an arrow). Switch to the correct HDMI input, and the signal problem should be resolved. If this doesn't work, the next step is making sure the HDMI port is working properly.
Asurion
asurion.com › connect › tech-tips › fix-laptop-hdmi-port-not-working
HDMI port not working on your laptop? How to fix it | Asurion
3 weeks ago - At Asurion, we help people troubleshoot and fix their devices every day—HDMI issues included. Here's how to tell if the port is the problem, and what you can do about it. The HDMI port sends high-definition audio and video from your laptop to another device, like a TV, monitor, or projector.
Lifewire
lifewire.com › fix-hdmi-connection-problems-1846811
How to Fix it When HDMI Is Not Working
June 27, 2022 - Try a Different HDMI Input: With your remote, switch to another input on the TV and then switch back to HDMI to see if the signal locks correctly. Failing that, plug your device into a different HDMI input and repeat the above steps.
Sony AP
sony-asia.com › electronics › support › articles › 00030375
There is no picture when using an HDMI connection. | Sony AP
Ensure the TV is set to the correct HDMI input. Use the (Input select) button on your remote to cycle through inputs until the correct one is displayed. Confirm the connected device is turned on. ... Turn off all devices and disconnect the HDMI cables. Go to Settings via the Quick Settings or HOME button. If the remote control has a Quick Settings ( or ) button, press the Quick Settings button and select Settings.
YouTube
youtube.com › watch
Fix HDMI Ports Not Working on Your TV | Every Solution - YouTube
You can see every way to fix HDMI ports on your TV that are not working, including software fixes for glitches and hardware fixes if the ports themselves hav...
Published August 28, 2024
Tech Support Guy
techguy.org › home › forums › software & hardware › hardware
How to know if my PC has a HDMI Port | Tech Support Guy
If the computer has a port in the back the same size as what the HDMI port is on the TV it almost has to be it. Finally, you could check in the device manager, right click my computer>manage>device manager.
Quora
quora.com › How-can-you-tell-if-your-TVs-HDMI-port-is-bad
How to tell if your TV's HDMI port is bad - Quora
Answer (1 of 2): Test, test, test. If you have HDMI devices (like a computer, Streaming Device, etc) that you KNOW work with other machines, insert their working HDMI cable and see if they work with the TV.
Samsung
samsung.com › home › product help & support › tv & av › samsung tv hdmi ports are not working
Samsung TV HDMI ports are not working | Samsung Gulf
If both devices do not work, and all other steps have been completed, the TV requires service. ... You can use the HDMI Cable Test function built into your TV to check for abnormalities in the connected HDMI cable.
Carlcare
carlcare.in › in › tips-detail › hdmi-port-not-working-in-smart-tv-solution
India | HDMI Port Not Working in Your Smart TV? Here’re the Solutions!
Press the power button on the device to verify its status. If it fails to power up, it's likely an issue with the device itself, and you may need to reach out to the manufacturer for assistance. Check HDMI Cable Connection: Disconnect the HDMI cable from both your TV and the external device.
YouTube
youtube.com › watch
How to Fix TV HDMI Port Not Working: Resolve HDMI No Signal Issue on TV - YouTube
Are you experiencing a "No Signal" issue on your TV when you plug in an HDMI cable? In this tutorial, I'll show you two effective methods to fix a TV HDMI po...
Published June 29, 2024
Yololiv
yololiv.com › home › hdmi-in-loop test: a quick way to check hdmi port
HDMI-in-Loop Test: A Quick Way to Check HDMI Port -
June 26, 2023 - Health HDMI ports with looping pictures after testing · The HDMI-in-Loop test is a valuable tool for YoloBox users to determine whether the HDMI ports on their devices are working correctly.