How to Fix Acer Monitor No Signal Error: 8 Quick Fixes

If you’re an Acer user, you may be experiencing a common issue where the monitor does not get a signal. What are the most effective ways to resolve this annoying issue, allowing you to utilize your computer effectively? This post can help you, and you’ll find effective solutions to fix the Acer monitor no signal.

If none of these solutions work, you can try connecting your display to another device. If it is now working, it is because of a problem with the device you originally connected. In this instance, resetting the CMOS/BIOS and changing the RAM sticks will be the solution.

Let’s take a look at each one of these fixes that you could attempt, and some others, more in-depth.

The troubleshooting steps listed solve issues such as an Acer desktop no signal or an Acer display not working.

It is best to start by focusing on the simplest, likely Acer monitor no signal fixes, and then move on from there. It is therefore recommended that you go through each of these steps in the order listed below.

How to Fix Acer Monitor No Signal Error

1. Restart the Monitor & Computer

It is crucial to clear the simple stuff out of the way as quickly as possible to fix the Acer monitor no signal.

Before diving in, make sure to switch off your monitor and computer. Make sure you unplug all cables. After 60 seconds have passed, try powering on your monitor first, then your computer next.

It’s amazing how many users have reported that this simple procedure helped them resolve their issue. The order of operations does indeed matter…monitor first, and then the computer afterward.

acer monitor no signal after startup and failed these tricks. Is it time to proceed to the next steps?

Also read: Second Monitor Not Detected? 10 Quick Troubleshooting Tips

2. Verify the Correct Input Source

It’s not uncommon to think there’s something more serious. If your cable is not connected to the Acer monitor, and your monitor is configured to the wrong input.

Acer monitors usually include DisplayPort (DP), HDMI, VGA, and DVI display cables.

Check your screen cable you’re using, and then identify the button for input. It’s situated on the right side of the monitor or on the back of the display, or at the lower part of the display.

In some models, you may need to access the on-screen display Main Menu in the beginning. If you are having trouble navigating, search your model number in the Acer manual for assistance.

3. Inspect and Reconnect Display Cables

OK. You’re now certain that the right input has been chosen. The next step is to examine these cables.

The purpose here is to secure the connection between the monitor’s screen port and the computer’s display port.

Beyond “no signal” errors, cables that are not properly fitted can result in a flickering screen and a myriad of other problems that are easily averted.

It is essential to note that almost all desktop PCs include a graphics card located at the back of the PC, which typically features a DisplayPort.

If this is the case for you, ensure that your monitor cable is plugged into the graphics card port and not a port on your motherboard.

Also, check the cable and its heads. You should ensure that there aren’t obvious signs of wear and tear.

Although everything appears good, try connecting another input cable to the one you’re currently using.

As a quick reminder, if you switch out the cable, ensure that the input display is matched.

If you switched cables, did the Acer monitor no signal issue disappear? If yes, the cable isn’t working, and you’ll need to buy another one. If not, then you can confidently eliminate the display cable as an issue.

4. Disable DDC/CI on the Monitor

Most Acer monitors nowadays include a protocol dubbed”The Display Data Channel (DDC) or Command Interface (CI) activated as an option.

In simple terms, it is a protocol for communication that, when linked to devices that support it, allows the control of your monitor to be automatically transmitted through software to your monitor.

This protocol was created to ease the installation process. In theory, all you have to do is plug in the monitor and then go. That’s the way it’s supposed to work.

In certain cases, the DDC/CI could cause faulty signaling for settings being sent into the monitor. To determine whether it is, you can disable this feature to see whether the issue is resolved.

Use the physical control buttons on your monitor to bring up the OSD Main Menu. Then, navigate to System> DDC/CI and disable it.

Restart both the monitor and the device to test it!

5. Lower Screen Resolution

Every computer monitor has an upper and lower resolution it can display.

If your graphics card attempts to display a resolution that exceeds the monitor threshold, the display will fail. In some instances, it can cause your Acer’s booting process to fail. To resolve this issue, try starting your PC in safe mode. In this way, the computer will change to a resolution your monitor can accommodate.

This is only applicable during Safe Mode! This means that you must manually alter your PC’s resolution setting and choose the lower resolution display.

6. Try Connecting A Different Device

If you’ve gone through the previous remedies without success, your monitor is likely not the cause of the problem.

We’ve all heard the same thing. Let’s test this idea to fix Acer monitor no signal issue!

Try using the monitor on another device. If your display works well, then you can be certain that the monitor is operating correctly. This is the good news. The downside is that this confirms that the device connected to the initial issue is at fault.

The best troubleshooting technique for a defective connected device causing a no signal error is to open the hardware. Therefore, it is essential to be aware of how to establish a ground to avoid damaging your computer by electrostatic charge before proceeding further.

Also read: Why Is My MacBook So Slow? 10 Tips to Speed Up MacBook

7. Reset CMOS/BIOS

The Complementary Metal-Oxide Semiconductor (CMOS) battery inside your PC supplies energy to your BIOS software. BIOS, also known as “Basic Input/Output System”, is responsible for coordinating the most important functions of your computer.

Setting the BIOS to default settings can help resolve a variety of problems.

Shut down your PC and remove all cables, and then ground yourself.

Then, remove the CMOS battery from the motherboard, and press the power button to discharge the remaining charge. After a few seconds have passed, insert the battery.

That’s it! Reboot your computer and test to see if your display is functioning.

8. Reseat or Rearrange RAM Sticks

Faulty or loosely connected RAM sticks are one of the most overlooked causes of the Acer monitor no signal problem. If your RAM isn’t seated properly, your PC may fail to boot or send a display output to your monitor.

Examine the modules for dirt, dust, or other visible signs of damage. After cleaning, you can firmly place each stick in its place. You should hear or feel the click as it secures into its place. To achieve the best results, try placing your RAM in a slightly different way than you did before, to ensure that the RAM is properly contacting.

Final Words

We’ve provided some easy and efficient solutions to resolve the Acer monitor no signal. It is recommended to follow the Acer monitor troubleshooting suggestions and try to fix your issue. We would appreciate it if you had any other tips to solve this problem.

FAQs: Acer Monitor No Signal