Lg Tv After Firmware Update Hdmi Ports Started Working

Lg Tv After Firmware Update Hdmi Ports Started Working

Whatever LG Goggle box tin can be used as an external screen for your laptop or PC, whether y’all are presenting something, playing a game or playing media. But this isn’t possible if something goes wrong with the HDMI connection. Whatever the effect, there is a very high chance that someone else has had the same issue. This is why I’ve put together all the possible issues that could go wrong with your connection.

HDMI connections between an LG TV and a laptop will not piece of work for a number of reasons. It could exist issues with the cable or issues with the TV or laptop. Problems with the Television set or laptop include incorrect brandish settings or incompatible hardware or software. This tin cause no or very poor signal.

Lg Tv After Firmware Update Hdmi Ports Started Working

I volition explain each of these issues in more detail throughout this article. It is also important to know how to connect a laptop and TV via a HDMI cable and how to resolve these connection issues.

LG Boob tube Won’t Connect to Laptop/Pc via HDMI

Laptop sitting in front of TV

HDMI Cablevision Problems

Many issues can exist linked to failures in the HDMI cablevision. You can test the cable by using the same cable to plug in a different device, or plugging the laptop into a unlike Goggle box/screen. If zip is working, it is most likely your cable.

Some HDMI cables degrade over time or are faulty to begin with. Some cheaper cables will be fabricated with materials that don’t concluding very long. If the cable is faulty or damaged, you will need to supervene upon it.

It may be a simple case of a loose cablevision. Try pushing the cablevision in fully to the TV and laptop to see if it was the physical connexion.

Another issue may exist the blazon of cable y’all are using. LG recommend y’all use a 4K HDMI 2.0 cable that is less than 10ft. Longer cables volition degrade in quality, which may account for connection failures, and incompatible cables won’t exist able to send the right indicate.

LG Tv HDMI Not Working With Laptop

Laptop HDMI cable

One culprit may exist your laptop. Every laptop is different, then at that place are a number of possible issues that you should work through.

External Display Settings

Check your external display settings. This is often automatic when the laptop detects a connexion with an external screen, but sometimes it might need to be manually selected.

There are four display options for a laptop and external screen. The first pick will display the computer on your laptop screen only, with the TV blank.

The other iii options should accept a display on your Television receiver. These options include extending the laptop screen onto the Tv, duplicating it or using the TV screen as your only display. Try each of these to encounter if this is the issue.

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Acoustic Output Settings

Check your output settings for both sound and video. Y’all should be able to see your LG TV every bit an selection. If yous can see information technology in the list, you but need to select information technology.

If you tin can’t meet the TV in your list, y’all may demand to contact your laptop manufacturer to right the issue.


Sometimes the resolution of the Television and laptop don’t lucifer. To check the resolution of your LG TV, press the ‘Home’ button on the remote and follow the pathway beneath.

Settings > Moving-picture show > Attribute Ratio

The chief two options are sixteen:ix for widescreen, or 4:3 for non-widescreen. You volition need to select a screen resolution on your laptop that is uniform with these aspect ratios. Ane recommended resolution is 3840×2160, but notation that older laptops will have smaller resolutions (such as 1920×1080).

Refresh Charge per unit

The refresh rate of your laptop tin also touch on the connectivity to your Goggle box through the HDMI cablevision. This tin exist found in your laptop’south display settings. If y’all can’t find it you lot may have to become into ‘avant-garde settings’.

A mutual refresh rate for laptops is 60Hertz, but you may demand to endeavour different options if this is not working.

Graphics Card

Because the display on your TV relies on the graphics card in your laptop, you might need update the graphics commuter. Some people have institute that this fixes the result.

Another affair to proceed in heed is if the graphics carte du jour is decadent. If this is the case, you may need to replace it. You should get a message on your laptop if there are whatsoever issues with the graphics card.


Because laptops are portable, they can be prone to hardware damage. For this reason, you should check if the HDMI port is even so working. First try a unlike port on the laptop (if it has multiple ports).

If there is only one port, or the other ports aren’t working, try connecting a dissimilar device to your Tv with the HDMI cablevision. You can likewise try connecting the laptop to a different TV. If the connection always fails with your laptop connected, but non a different device, it is likely the HDMI port.

Why Won’t my HDMI Work on my LG Tv

TV port panel

At that place may be issues with your LG TV that are causing the connexion issue.

Select Correct Input

The simplest explanation is that y’all take not selected the right input channel. Make sure the channel, whether information technology’s HDMI 1, two, 3 or 4, matches the HDMI port that your laptop is plugged into.

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Display Settings

There are many settings you could dabble with to attempt to get your laptop brandish to work on the Boob tube. 1 of the first methods to try would be a factory reset. There may have been one setting that was altered that is causing the outcome.

This can be done using a passcode (which is ‘0000’ by default). Kickoff by pressing the ‘Domicile’ or ‘Bill of fare’ button on your remote and following the steps below.

Settings > Full general > Reset to Initial Settings > Confirm Reset > Enter Passcode > Confirm Reset.

Similar to screen resolution on your laptop, you tin can also adjust the aspect ratio on your LG Television receiver. As I mentioned earlier, you can usually cull from a xvi:9 (widescreen) or 4:iii ratio. There may be other options on your particular LG TV, but try each one to meet if it helps.


Some LG TVs have different types of HDMI ports. Ane in particular is known as a HDMI-ARC port. This has known issues with connecting to laptops, so y’all may demand to effort a different port that supports your laptop.

Another possibility is that the HDMI port is broken. If it is just one port, y’all may be able to have information technology repaired. However, this will cost anywhere between $100 and $300. Your cable should still work in the other ports.

If none of the ports work, the hardware within the TV will need to exist replaced. This tin can cost betwixt $200 and $350.

Before you endeavor that, try restarting the Idiot box using the steps beneath. This has been a common result with the circuit lath in these LG TVs where all HDMI ports end working.

Pace 1:
Turn off all devices connected to the Idiot box.

Footstep 2:
Unplug all HDMI cables from the Television receiver.

Pace iii:
Plough off your TV and unplug it from the power.

Step four:
Press and agree the power button for 30 seconds.

Pace 5:
Reconnect all HDMI cables and devices to the TV.

Stride vi:
Plug the TV back in and turn it on.

How Practice I Connect My Laptop to My LG Television set Using HDMI

Man setting up TV

Connecting your laptop and LGTV via HDMI is very simple.

Step ane:
Brand certain your laptop and Boob tube are on.

Step 2:
Connect the HDMI cablevision into one of the HDMI input ports in the back of the TV.

Step 3: Navigate to the corresponding channel for that HDMI port.

Footstep iv:
Connect the other finish of the HDMI cable to your laptop’s HDMI port.

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Later these few steps, you lot should have either your reckoner screen, or an extension of your screen, displayed on the TV. If not, you may need to refer to the information above to determine what is causing the disruption to the connection.

LG Idiot box Not Detecting HDMI Laptop

HDMI cable

If your LG Boob tube is set to the right HDMI input channel, yous should see when it detects the HDMI connection. You tin as well meet all the detected connections in the channel carte when choosing your HDMI device.

If the Idiot box does not discover annihilation at all, it is more than likely to exist a hardware issue. You should refer to the following issues, which are explained in item above.

· HDMI cable issues.

· Malfunctioning HDMI port.

· Wrong input channel.

LG TV Won’t Brandish Laptop HDMI

Female with laptop and TV in the background

If the LG TV detects the connection with the laptop but in that location is no paradigm displayed, you may need to expect into the settings and software on your Tv and computer.

Possible problems are listed below, but are explained in more than detail above.

  • Display settings on the TV or laptop.
  • Incompatible graphics carte.
  • Outdated graphics commuter.

Some people find the start-upwardly sequence makes a divergence when connecting your LG TV to your figurer. Commonly the connection should work with both Idiot box and computer on, but y’all may want to try restarting each while they are continued.

LG TV Flickering when Continued to PC HDMI

Surprised female holding TV remote

Sometimes the above issues will provide a signal, but the screen flashes/flickers. Of the problems detailed above, the most likely ones to cause this issue are listed beneath.

  • Loose or faulty HDMI cable, or one that is besides long (>10ft).
  • HDMI plugged into HDMI-ARC port.
  • Display has incorrect resolution or refresh rate.
  • Graphics card needs to be updated.

LG TV HDMI PC Non Full Screen

Male looking at TV channel choices on screen

If your PC display on an LG Goggle box is not full screen, the solution is simple. Yous will demand to modify the resolution of the projected display from the laptop.

This is detailed higher up under ‘Resolution’, but basically some computers will guess how big the display needs to be to fill your TV screen. Sometimes this resolution is smaller than it should be, so you lot simply need to manually change it to better arrange the size of your LG Tv set.

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