A VGA connector is found on many AV components and is mainly used for connecting computers with your equipment.
It is a relatively old connection type now, but it still has its uses so don’t be surprised if you run into one of these from time to time.
There are still plenty of times that you might need to use a VGA connection.
And, you might be surprised to know that you can connect a VGA output to an HDMI input connection. And that’s not all, you can connect HDMI to VGA too!
Let us take a look at this connection type and consider its use.
What Does the VGA Connector on The Device Look Like?
The VGA connection on your device looks like this:
It is a female 15-pin D-sub port.
The ‘D’ shape ensures that VGA cables will only fit one way round. It is often colored blue or black.
What Does a VGA Cable Look Like?
A VGA cable looks like this.
It will have a male 15-pin D-sub connector, which obviously fits nicely with the female connector on your hardware.
Be careful when plugging this in, as you can bend the pins fairly easily unless you are careful. If you find it isn’t going in easily, check for any bent pins on the cable end.
If you see some that aren’t aligned properly, you can carefully straighten them up with some tweezers or a small pair of pliers.
What Does a VGA Connection Do?
A VGA connector on your AV equipment is normally there for you to connect your PC or laptop.
This connection type will usually be designed to receive an analog RGB signal from a connected device – which is the type of signal that you get from a computer. It supports standard-definition and high-definition resolutions.
It does not transmit audio signals and so a separate audio connection will be required to hear any audio.
The standard 15-pin D-Sub connector is common on many computers, and therefore you can use VGA to VGA cables to send a computer image to your TV screen.
When Should I use a VGA Connector?
A VGA connection is often used if you want to connect your PC or laptop to your TV or projector.
However, if your computer or laptop has a DVI or HDMI output then it would usually be better to connect using this type of connection.
If your output device only has a VGA port, or you have no spare DVI or HDMI inputs, then then a VGA connector like this should still give you a good image.
What Else Can You Tell Me About VGA Connections?
In case you were wondering, VGA stands for Video Graphics Array.
It was developed in 1987 by IBM for an original display resolution of 640 x 480 pixels – although the standard can be used for 1080p high-definition resolutions and above.
To get a sharp computer image on the TV screen, you will need to ensure that you set the output resolution of the computer to match the native resolution of the TV.
The image will appear stretched or blurred if you don’t do this.
Also, depending on the native resolution of your TV and the output capabilities of the graphics card in your computer, you may not be able to fill the whole screen with a sharp image as the output resolution may not match the TV exactly.
If you are using a laptop, then you will usually need to press a combination of keys to send the image to the TV – for example, function + F7.
This will vary between models and so consult your manual.
Can I Convert VGA to HDMI?
Yes. You will need to buy an adapter cable.
Sending a computer image to your television is more difficult if you have a VGA port on your computer – but you don’t have a VGA connection on your TV.
Most modern TVs will have several HDMI inputs – but maybe not VGA.
You should always check which way you need the signal to go and buy the appropriate adapter. An adapter will be specific for HDMI to VGA – or VGA to HDMI.
The VGA to HDMI scaler/converter pictured below supports sending from VGA to an HDMI input.
It also sends the audio via a USB connection.
Just be aware that you won’t be able to send copyright-protected content. HDCP protection requires support from all devices in the chain.
A VGA connection doesn’t support HDCP.
Converting HDMI to VGA
For converting HDMI to VGA, you should be aware of some possible limitations.
You won’t be able to play copyright-protected material – such as from a Blu-ray player – as there will be no HDCP connection. This is required for copyright protection.
You may also require a separate audio connection.
However, if that isn’t an issue, then the HDMI to VGA adapter below will do the job just fine.
It supports sending video from several devices such as PCs, notebooks, Chromebooks, Xbox and Wii U.
It doesn’t support devices with low-power HDMI output ports such as the Sony PS4 and some Apple products.
About Home Cinema Guide
Paul started the Home Cinema Guide to help less-experienced users get the most out of today's audio-visual technology. He has worked as a sound, lighting and audio-visual engineer for around 20 years. At home, he has spent more time than is probably healthy installing, configuring, testing, de-rigging, fixing, tweaking, re-installing again (and sometimes using) various pieces of hi-fi and home cinema equipment.