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How To Fix THE “Cable Not Connected” Error On Acer Monitor?

  • Aryan 
  • 6 min read

How To Resolve The “Cable Not Connected” Error On An Acer Monitor

This error usually occurs due to a loose connection between the cable and the monitor. You may find that the cable is damaged or frayed.

Try unplugging the cable and plugging it back in again. If this doesn’t work, then you should consider replacing the cable. Another solution would be to replace the power supply unit.

However, before doing this, make sure that the power supply unit isn’t faulty. Also, make sure that the AC adapter is plugged in properly. If you still experience the same problem after trying these steps, then you should contact Acer Support.

6 Causes And Solutions For The ‘Cable Not Connected’ Error?

Sometimes, the cable connecting your computer to your TV isn’t plugged in properly. You might think that it’s plugged in correctly, but it’s actually not. There can be different reasons why this happens. Some of those reasons include:

1. The Problem With The Monitor/display

Acer monitors are notorious for having display option problems. You might think that it’s only a minor issue, but it can actually be quite serious.

In order to fix any display signal problems, you should try to restart your monitor. If that doesn’t work, you should try to reset it.

Resetting your monitor means turning off the power, unplugging it, and plugging it back in again. After doing this, you should wait for a couple of minutes before trying to turn it back on again.

If you still experience problems after following those steps, you should contact Acer support.


This is a pretty straightforward fix. You just need to unplug all of your cables and peripherals from your Acer monitor and then hold down its power button for 30 seconds before turning it back on. Then wait for five minutes and plug everything back in.

After that, turn the monitor back on and let it boot up normally. If your problem is solved after doing this, great! But if not, keep reading to find out how to solve it yourself.

2. Display Output Configuration Error

There are two main types of graphics cards in PCs: integrated graphics cards and discrete graphics cards. An integrated graphics card is built right onto the motherboard, whereas a discrete graphics card is separate from the motherboard.

Integrated graphics cards perform the basic graphics processing functions needed for the proper functioning of a computer. Discrete graphics cards are additional components that provide advanced functionality beyond those provided by integrated graphics cards.


To solve this problem, you can either buy a second graphics card or install a graphics card adapter. Graphics card adapters allow you to plug any number of devices into a single port. You can find graphic card adapters online or in stores.

Acer monitors are known for being reliable, durable, and affordable. However, sometimes Acer monitors may experience issues with their displays. These issues include display output port configuration errors.

3. The Graphics Card Is Not Properly Seated

Your computer may be displaying a blank or black screen because your graphics card isn’t properly installed. You should never install a graphics card without first checking its compatibility with your motherboard.

To test whether your graphics card is compatible with your motherboard, plug it into your system and turn it on. If you see any errors, contact Acer Support immediately.


This solution involves fitting the graphics card correctly and the display adapter properties. Since the problem, in this situation, would be an improperly installed graphics card, the fix would be to install it properly.

One user mentioned that they had the issue when the graphics cards were ‘not pushed all the way. This sort of issue is most likely to occur if you have set up the computer yourself rather than with the assistance of an expert.

You should try installing the graphics card properly if you experience any issues with your Acer laptop.

4. Hardware Trouble

There are several reasons why your computer may stop working properly. You might experience any of the following problems:

Faulty Cable

If you’re experiencing problems with your Acer monitor, you might be using a faulty display cable. You could be using a faulty cable with your system. Try using it on a different computer or monitor and see if it works fine. If it does work fine, then the issue isn’t with the cable. But, if it doesn’t, then you should get a new one.

Faulty Display Output on PC

If your computer screen isn’t displaying anything at all, it could be due to a corrupted display driver. There could be something wrong with your graphics card/motherboard. It might have a damaged connection, which could be preventing it from sending out the signal needed to display the picture.

Or it may have sustained some kind of physical damage which could be preventing the cable from going in correctly.

Faulty Input Port on Monitor

To test whether the problem is with the input port, disconnect the monitor from the computer and plug it directly into the video card. Then, power on the computer and see if the monitor shows anything. If it does, then the problem is most probably with the input port.

You can also try and connect the monitor to the computer via the DVI port. If it works, then the problem is with the video card. If it doesn’t work, then the problem is either with the input port or the video card.

How Do I Connect My Acer Monitor To An HDMI Port?

You’ll need to connect your Acer monitor to an HDMI port if you want to watch movies or play games on it. You can find the HDMI ports on the back of your computer. Run your fingers until you reach the last to the second button. This should have an “Input” label. Press it. This should provide the option to switch between VGA or HDMI.

Connect your Acer monitor to an HDMI port using the cable provided with your laptop.

How Can I Resolve The Input Not Supported Issue On My Acer Monitor?

Acer monitors come with two ports: a VGA port and a DVI port. You can connect your laptop to either port using an HDMI cable. However, if you try connecting your laptop to the VGA port, you may encounter an Input Not Supported error.

To fix this issue, open the display settings properties for your monitor. Click the Monitor tab. Then, select the Screen refresh rate option under the Monitor section. Choose the recommended or default value in the dropdown menu. Finally, save the changes and restart your PC.


Acer monitors are notorious for being difficult to connect to computers. There are several reasons for this, including poor-quality cables, bad connectors, and incompatible hardware.

If your Acer monitor is displaying the “Cable Not Connected” error message, try and figure out the cause of the issue. You may find that there are multiple problems at play here.

Try and solve any issues that you encounter, and if you still cannot resolve the problem, consider contacting Acer support.

Aryan Benedict

Aryan Benedict

I'm Aryan, welcome to my profile and website My aim is to answer all your tech and gadget related questions in one, easy-to-navigate, website. I love technology and a lot of my interest lies in gadgets of today. There are many common questions I am constantly asked about various products - hence the birth of Tech Loved. My awesome team and I will answer all the questions you may have (well maybe not all, but hey, we try! :) )

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