Monitor is Not Allowed to Start – 10 Easy Fixes You Can Try
If you’ve ever faced the frustrating issue where your monitor won’t start or displays the error “Monitor is not allowed to start,” you’re not alone. This problem can occur for several reasons, and there are multiple simple solutions you can try to get your monitor back in action. In this guide, we will explore 5 easy fixes for this problem. Whether you’re experiencing a “no signal” error or your monitor goes blank, we’ve got you covered with easy-to-follow steps.
1. Check the Power Connection of the Monitor and Cable
One of the first things you should check is the power connection. Sometimes, monitors won’t start because they aren’t properly plugged in. Ensure the monitor is connected to a working power outlet. If the power light is off, try using a different power cord or plug to see if that fixes the problem.
Additionally, make sure the power cable is securely plugged into both the monitor and the wall socket. A loose connection can cause intermittent issues where the monitor fails to turn on.
If you notice any damage to the power cord or connector, you may need to replace it. It’s also a good idea to check if the monitor’s power button is functioning correctly. Sometimes a stuck or damaged power button can cause the monitor not to turn on.
2. Ensure the Video Cable Is Securely Connected
Another common reason your monitor is not turning on could be an issue with the video cable. The monitor needs a proper connection from your computer’s graphic card to the screen for it to display correctly. Check if your HDMI, VGA, DVI, or DisplayPort cable is securely connected.
If you’re using a VGA cable, check for any bent pins or damage. For HDMI cables, ensure both ends are tightly plugged into the monitor and the computer. A faulty or loose cable connection can cause the “monitor is not allowed to start” problem.
Also, try using a different video cable or port if available, as the one you’re using could be damaged or malfunctioning.
3. Verify Your Monitor’s Input Source
Many modern monitors have multiple input sources (HDMI, DisplayPort, VGA, etc.), and sometimes the wrong input might be selected. You need to ensure that your monitor is set to the correct input source for your connected cable.
If the monitor screen is black and not showing any image, check the on-screen display (OSD) menu. Use the monitor’s buttons to navigate to the input settings and make sure it’s set to the correct source (HDMI, VGA, etc.) where your computer is connected. This simple fix might solve the issue quickly.
4. Check for Graphics Card or Display Driver Issues
Another possible cause of a monitor not turning on is an issue with the graphics card or display drivers. If your graphics card is loose or not properly seated, the monitor might not receive any signal. To resolve this, turn off your PC, remove the graphics card, and reinsert it securely into the PCI-E slot.
Also, check if your display drivers are outdated or corrupted. If your computer is not detecting the monitor properly, updating or reinstalling the graphics drivers can help. You can do this by visiting the manufacturer’s website for your graphics card or using the Device Manager on Windows to update the drivers.
If you’re using a laptop, ensure that the external display settings are correctly configured. Sometimes laptops automatically switch to the built-in screen instead of an external monitor.
5. Test with Another Monitor or Computer
If the above solutions haven’t worked, you can try to rule out whether the issue lies with the monitor or your computer. If possible, connect your monitor to another working computer. If the monitor turns on, the problem might be with your original computer or its connection settings.
Alternatively, try connecting your computer to a different working monitor. This will help you determine if the issue is with your computer’s hardware or the monitor itself. If the second monitor works fine, then it’s likely that your original monitor is faulty.
6. Reset the Monitor to Factory Settings
Sometimes, issues with the monitor can be resolved by resetting it to its factory settings. This can help clear any incorrect configurations or settings that might be causing the display problem. Many monitors have an option to reset in the OSD (on-screen display) menu.
To reset the monitor:
- Turn on your monitor and use the monitor’s buttons to open the OSD menu.
- Navigate to the Settings or Options section.
- Look for a Factory Reset option and select it.
- Follow the on-screen instructions to confirm the reset.
After resetting the monitor, it should return to its default settings, which might resolve the issue. If the monitor works after the reset, you can start adjusting the settings to your preference.
7. Check for Overheating Issues
Another reason your monitor may not turn on is due to overheating. If the monitor has been running for an extended period, or if the environment is too warm, it could have shut down automatically to protect itself from damage. Overheating can cause the monitor to malfunction or even fail to power on.
To resolve this:
- Turn off your monitor and unplug it from the power source.
- Let it cool down for 15-30 minutes.
- Ensure that the monitor is in a well-ventilated area and that its cooling system (if applicable) is functioning properly.
- After cooling down, try turning the monitor back on.
If overheating continues to be a problem, you may want to check the ambient temperature or monitor ventilation to ensure proper airflow.
8. Inspect for Loose or Faulty Internal Components
In some cases, internal components of the monitor can become loose or damaged, leading to it not starting properly. If the power light turns on but the screen remains black, it could be due to a faulty internal component, such as a damaged capacitor, inverter, or backlight.
If you’re comfortable opening the monitor:
- Unplug the monitor and remove the back cover carefully.
- Check for any visible signs of loose wiring, burnt components, or damage on the circuit board.
- If you’re unsure or uncomfortable performing these checks, it’s best to consult a professional technician.
If you notice any issues inside the monitor, it may require professional repair or replacement of the damaged parts.
9. Test with Different Graphics Output Settings
In some cases, the issue may not be with the monitor or the computer but rather with the graphics output settings. If your computer is set to output video to a port or display that isn’t being used, the monitor will not receive a signal. This can happen especially if you have multiple displays connected or if you’ve changed your output settings recently.
To fix this:
- On Windows, you can press Windows + P and cycle through the Display Modes (Extend, Duplicate, Second Screen Only, etc.) to ensure the correct output is selected.
- On Mac, go to System Preferences > Displays and check that the Display Arrangement is set correctly.
- If you’re using a desktop with multiple graphics cards, make sure the monitor is connected to the correct card.
This will ensure that the computer is sending the signal to the correct output port that your monitor is connected to.
10. Update Your BIOS and Firmware
If none of the previous solutions worked, there may be an issue with the BIOS or firmware settings of your computer or monitor. Outdated BIOS or firmware can sometimes cause hardware compatibility issues, including problems with the monitor not turning on.
To update your BIOS:
- Check your computer’s manufacturer website for any available updates for your BIOS.
- Follow the provided instructions carefully to update the BIOS on your motherboard.
For monitors, some models come with firmware updates that can be installed via a USB stick or a software update tool provided by the manufacturer. Ensure that you follow the instructions closely when updating the firmware.
Updating the BIOS or firmware can fix compatibility issues and improve overall system stability, which might resolve any monitor startup problems.
Frequently Asked Questions (FAQs) About “Monitor is Not Allowed to Start”
1. What should I do if my monitor is not turning on and shows a black screen?
If your monitor is not turning on and you’re facing a black screen, first check the power connections. Make sure the power cable is securely plugged into both the monitor and the outlet. Also, ensure the monitor’s power button is working. If the power is on but the screen remains black, try resetting the monitor to factory settings or check the input source to ensure the monitor is receiving the correct signal from your PC. If the issue persists, it could be related to a graphics card or display driver problem.
2. Why is my monitor not allowed to start even though the power light is on?
If the power light is on but your monitor still won’t start, the issue could be related to incorrect input selection. Verify the input source on the monitor (HDMI, VGA, DisplayPort) is set correctly. Additionally, check the video cable for any loose connections or damage. It’s also possible that the graphics card or display drivers are causing the issue, so updating or reinstalling drivers might help.
3. How do I fix my monitor if it shows “No Signal” but is plugged in correctly?
When your monitor displays a “No Signal” error despite being plugged in correctly, it usually means there’s an issue with the signal being sent from your computer. Ensure that the video cable (HDMI, VGA, etc.) is properly connected. You can also try connecting the monitor to a different device to check if the issue is with the monitor or the computer. If the issue persists, try updating the graphics drivers or adjusting the display settings on your PC.
4. How can I fix monitor startup issues related to outdated drivers or graphics card problems?
If your monitor isn’t starting properly due to outdated drivers or a graphics card malfunction, you may need to update your graphics drivers. You can do this by visiting the manufacturer’s website or using Device Manager on Windows. Sometimes, a loose or improperly seated graphics card can also prevent the monitor from receiving a signal. Check that the card is securely connected to the motherboard and restart your computer after any changes.
5. Can overheating cause my monitor to stop working, and how do I fix it?
Yes, overheating can cause your monitor to shut off or fail to start. If the monitor is overheating, it may automatically shut down to prevent damage. To fix this, turn off the monitor and let it cool for 15-30 minutes. Ensure the monitor is in a well-ventilated area, and check for dust buildup that might block airflow. If overheating is a recurring issue, you might want to adjust the environment’s temperature or monitor ventilation for better heat dissipation.