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How to Fix No Signal on Acer Monitor

by Vincent

Encountering a ‘no signal’ message on your Acer monitor can be a daunting experience, especially when you’re in the middle of something important. But worry not! This seemingly complex problem has some pretty straightforward solutions. In the following post, we’ll guide you through several tried-and-tested methods to troubleshoot the ‘no signal’ issue on your Acer monitor, aiming to help you restore your screen’s signal in no time.

Troubleshooting Guide to fix “no signal” on monitors

1. Check Your Cable Connections

First things first, ensure the cables connecting your monitor to your computer are securely attached. Oftentimes, a loose or disconnected cable is the culprit behind a ‘no signal’ error. Thoroughly inspect all the cables — the power cable, VGA, HDMI, or DVI — whatever your setup uses. Keep an eye out for any damage or wear and tear. A faulty cable can interfere with the signal between your computer and Acer monitor. If you notice any physical damage or if the ‘no signal’ message persists even after securing all the connections, try swapping the cable with a new one. Remember, it’s always best to start with the simplest solutions!


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2. Try a Different Video Source

If the cables are not the problem, try connecting your monitor to a different video source. This could be another computer or a laptop. If the ‘no signal’ message persists, the issue might lie with the monitor itself.

black and blue coated wires

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3. Test monitor to other Computer

Testing your Acer monitor with another computer is an effective way to isolate where the ‘no signal’ issue might be coming from. If the monitor works perfectly with a different computer, it’s likely the problem lies with the original computer’s video output or graphics card. If you’re still receiving a ‘no signal’ message when the monitor is connected to a different computer, then it’s probable the issue lies within the monitor itself.


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4. Cleaning your Ram

Dust can accumulate on your RAM over time and interfere with its operation, which might lead to the ‘no signal’ issue. To clean your RAM, first, turn off your computer and unplug it. Open the case and locate the RAM. Gently remove it from the slot, taking care not to touch the gold connectors. Use a soft, dry cloth or a can of compressed air to clean any dust off the RAM and its slot. Once you’ve finished, securely reinstall the RAM and close your computer’s case. Turn your computer back on and check if the ‘no signal’ message persists. If it does, it’s time to move on to the next troubleshooting step.

Close up picture of ram sticks

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5. Update Your Display Drivers

Outdated display drivers could also be causing the ‘no signal’ issue. To update your drivers, navigate to your computer’s Device Manager, find your display adapter, right-click, and select ‘Update Driver Software…’.

Display Adapter update

6. Connect The Monitor to the Graphics Card

If the ‘no signal’ issue on your Acer monitor still persists after trying the previous solutions, it might be time to check your connections. Sometimes, the problem arises because the monitor is connected to the motherboard’s display output, rather than the graphics card’s. If your computer uses a separate graphics card for display output, ensure your monitor is connected to it. To do so, turn off your computer, disconnect the monitor cable from the motherboard’s display output, and connect it to the graphics card’s output. Once you’ve done this, turn your computer back on and check if the ‘no signal’ message on your Acer monitor has been resolved.

GPU close up

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7. Reset CMOS/BIOS (Battery Replacement)

Resetting the CMOS (Complementary Metal-Oxide-Semiconductor) or BIOS (Basic Input Output System) can potentially resolve the ‘no signal’ issue on your Acer monitor. The CMOS/BIOS is responsible for storing the basic settings of your system. If you’re experiencing ‘no signal’ problems, it could be due to incorrect or corrupt CMOS/BIOS settings.

To reset, turn off your computer and unplug it. Open the computer case and locate the round, flat battery on the motherboard (this is the CMOS battery). Carefully remove the battery, wait for about 10 minutes, and then reinsert it. This will reset the BIOS settings to default. After reinserting the battery, close the case, plug your computer back in, and turn it on. Check if the ‘no signal’ message on your Acer monitor has been resolved.

CMOS battery

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8. Reset Your Monitor

Another option you could try is to reset your Acer monitor to its factory settings. This can often fix miscellaneous issues, including the ‘no signal’ problem. To do this, navigate to the ‘Menu’ using the buttons on your monitor, then find and select the ‘Reset’ option. Remember, this will revert all your customized settings back to their original state. After resetting, check whether the ‘no signal’ message still appears. Troubleshooting this issue may require a bit of patience, but with these methods at your disposal, you’re well on your way to regaining a clear, signal-strong display on your Acer monitor.

b&w monitor

Photo by Ayach Art

9. Take It to a Professional

If all the above steps fail to solve the ‘no signal’ issue on your Acer monitor, it may be time to consult a professional. You could take the monitor to a reputable computer repair shop, or if it’s still under warranty, contact Acer Support. They have a team of highly trained technicians who will diagnose and rectify any technical issues. Attempting to open the monitor yourself could invalidate your warranty and potentially cause more harm than good. In this case, professional help is often the safest and most effective solution.

PC Technician

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A ‘no signal’ error on your Acer monitor can be frustrating, but it’s important to remember that there are several strategies you can employ to rectify the issue. Be patient and methodical in your approach, starting with simple solutions like checking the connection cables and moving on to more complex measures such as resetting the BIOS or the monitor itself. If you’re unable to resolve the issue yourself, don’t hesitate to seek professional help, especially if your monitor is still under warranty. Preserving the integrity of your device should always take precedence over a quick, potentially damaging fix. Through a combination of patience, diligence, and professional assistance when necessary, you can restore your Acer monitor to its optimal function.