VGA is a video graphics adapter that uses standard analog signal transmission and provides the necessary connections to display information on your monitor. It works with both PCs and laptops.
VGA no signal is a common issue that can plague your computer system. Sometimes the display will appear blank, or you may see all kinds of problems like dropped lines or even scrambled text and graphics.
However, you may face problems like VGA no signal issues when connecting your computer to an external display device or projector via VGA cable. Here’s how to fix VGA signal issues.
What is VGA Used For?
As you might have guessed, VGA is the old standard. It was first introduced in 1987. However, despite being outdated, it is still used in many office and industrial applications where a high-quality image is not required. It is cheap and common, making it the best choice for these applications.
VGA cables are used for your desktop computer to connect a display monitor; you can see the video message output from your pc. This cable comes in various lengths and has a different number of pins depending on size.
It is always best not to forget the original length of cable/pin whenever changing VGA type or upgrading a monitor. Still, a few factors should affect final results like HDCP connection vs standard VGA (supporting analog component), HDMI signal looks, Display ports (digital video signals) resolutions, and refresh rates inputs/output as well.
Reasons of VGA No Signal Issues
What does no VGA signal mean? If you’re troubleshooting your computer and see the “VGA no signal” message, it means that your monitor is not getting any signal from your computer’s video output port.
So, why is no VGA signal on a computer? Well, this problem is caused by one of the following.
- VGA cable or plug damage.
- Physical damage on display wiper and scan regulators phototube devices like gas masks, goggles TV etc., have a metal contact strip near video connector pins. They are supposed to be cleaned periodically with either “non-peroxide” cleaner used for vents/air ducts fans dry monitor carefully.
- Bad VGA cable connecting from a computer to a display case. For this reason, try swapping different cables with clean ones until one works.
- Display is defective and has to be replaced.
More Read: LG Monitor Is Not Turning On: How to Fix It
How To Fix VGA No Signal Issues?
If you are experiencing VGA no signal issues, there are a few potential solutions that you can try. Here’re the steps to Fix VGA No Signal Issues.
Step 1: Unplug the Power Cable
Before doing anything, you must turn off your PC and unplug the power cord from the outlet. To do this, just unplug your PC plug from the main power source.
Step 2: Unplug the VGA Cable
Turn off your PC and unplug the VGA female connector from the back of the monitor. First, plug red, then blue, and end to the correct connector. After turning them on, you will see a blank screen. I tried all possible combinations, but no image refresh or resolution problems.
Step 3: Troubleshoot Connection
Don’t use VGA cable where it is not indicated. Using a different kind of connector on end will completely break your VGA to HDMI connection. So unplug USB or other type cables if you see something wrong there.
Using old components for a long-range VGA transmitter with an HDMI to VGA converter, the quality of your screening can be ruined.
Step 4: Re-Seat All Connections with Correct Labels
Make sure no plastic or rubber is hanging over connectors and USB slots. Tighten all connections with correct screws and labels. For example, you should not see any of the cables moving around. Then plug-in power cable back to outlet/PC.
Step 7: Ensure Clear Visual from Both Sides
Double-check your external monitor is showing the same display signals as your receiver trying to connect VGA via HDMI. If it’s different, adjust the alignment setting on the tv or monitor settings (depending on the model). Then test again to make sure the display is matching.
Step 8: Turn On PC
With No VGA Signal, If this occurs, either turn off and unplug power, then wait 10 minutes for cable repair time, or re-seat pins on the VGA board using an Allen key. Then restart windows under safe mode to see if a new driver for HDMI resolves the connection issue, Or use the DVI port behind your monitor instead of USB.
Step 9: Update Graphics Driver
Some systems don’t have the needed driver already loaded in OS. For this purpose, you can visit your PC’s brand support website and assign a card or make another profile with the driver’s signature. If windows complain about a missing driver, run as administrator to install all your hardware, including the newly installed graphics card/power supply in a desktop computer, before starting the installation process for best results.
Some VGA Troubleshooting Tips:
Every digital monitor/display has a unique set of rules and procedures that it follows in order to run correctly. Before starting troubleshooting steps, you must identify the problem.
Check VGA Cable Connector:
Identify the fault source by video modes available on your monitor/ display. Check VGA cable connector is tight enough and labeled appropriately. All wires are attached correctly before using the first time. For example, if VGA is connected only with HDMI connection but still image streams ok, that means the issue is on the HDMI side.
Update Graphics Driver:
Most computer users don’t update the driver and Windows. So, you should check your PC graphics card driver to see if it supports a native display resolution of other devices or not. If yes, proceed with the next step mentioned.
Even when installing new drivers for DVI (digital monitor) input, some computers will still show VGA output. Because the digital pc monitor/display does not work in higher video modes features by default, or some people prefer VGA mode to be the default.
Product Display Setting:
Resolve the problem by setting display resolution in the computer settings. If detect your monitor hardware supports a native computer resolution, continue with the steps below to use maximum performance or set screen resolution as high as possible (1900X1080) and don’t change back even if the ‘fault’ message appears on the screen.
This way, you can enjoy higher quality images of 720p@60hz or 1080i@60hz every time you step on the computer and help the graphics card’s performance.
Some Frequently Asked Questions:
How do I know if my VGA port is working?
If you have a computer with a VGA port, you can test to see if it is working by plugging in a VGA cable and connecting it to a monitor or projector. So, your VGA port is working if you see a display on the screen. On the other hand, if you don’t see a display, you may need to troubleshoot the connection or try another cable.
Why is my PC turning on but no display?
There are several possible reasons why your PC is turning on but not displaying anything. The most likely reason is that there is a problem with your monitor, graphics card, or cable. Another possibility is that your PC is not booting up properly due to a hardware or software issue. You can disconnect your power cable and VGA or HDMI cable, clean it and reconnect it. Now restart your PC and see the result. If you are unsure what the problem is, it is best to take your PC to a qualified computer technician for diagnosis and repair.
How do I fix my Asus DisplayPort no signal?
If you are having trouble with Asus DisplayPort not working, there are a few things you can try to solve “Asus no VGA signal.” First, check to make sure that the cable is properly connected. Now, try unplugging the cable, plug it back in, and recheck it. If that doesn’t work, please try restarting your computer. You may need to contact Asus for further assistance if the problem persists,
When you have no video signal, it means that either the cable is not connected correctly or the display itself may be defective. In order to fix VGA no signal issues, there are several things that you need to do, which I told in this article. So, All of these steps will help fix VGA no signal issues quickly.
After applying these steps, I hope you don’t have any VGA problems on your computer now. But if there are hardware issues, you cannot fix no VGA signal problem. By the way, you can claim your warranty if you have it. Stay with us and enjoy gaming!