HDMI to VGA converter not working.

[Jamaiz]

I've got a 720p LED monitor with a VGA slot. My CPU has an HDMI slot. So, I bought a converter. But, the thing doesn't seem to be working. Is it because you just "can't" connect a 720p monitor to a HDMI slot, or is it due to another reason?

 

[kanewolf]

Provide a link to the converter you purchased.

 

[Jamaiz]

http://www.shreyanscomputronix.com/57-2/hdmi-cables-hdmi-products/hdmi-to-vga-convertor-with-audio

 

[Eggz]

Seems shady. It says "Audio Support," but the VGA spec doesn't recognize audio (i.e. that's impossible).

But to be sure the computer is delivering signal, try connecting it to a TV or anything else with an HDMI connector. If you can get a signal, it's wither the display or the converter.

Try plugging the display into a laptop or something with a VGA out. If it works, in addition to your computer passing the test above, then it's your converter.

 

[Moonstick2]

It's more than likely that the converter doesn't support 720p resolution. Here are two example converters from RS and StarTech - notice that they each support totally different resolutions (and neither does 720p).

720p VGA converters seem to be hard to come by. Does your monitor not have a DVI digital input? If so an HDMI to DVI cable or converter would be much better. If it doesn't you're much better off getting a new monitor.

Seems shady. It says "Audio Support," but the VGA spec doesn't recognize audio (i.e. that's impossible).

'Audio Support' on HDMI converters usually means that it provides a separate 3.5mm output for the sound.

 

[Jamaiz]

It's more than likely that the converter doesn't support 720p resolution.

Damn! The converter supports only 1080p. My monitor's resolution is 720p. Thanks.

 

[Eggz]

That seems weird also. Every display connector I've used supports UP TO a certain resolution, which means it supports lower resolutions than stated but not higher. Since 720p is a lower resolution than 1080p, it should support 720p if it works at all.

It may be worth going through some tests if you haven't already.

 

[Moonstick2]

That seems weird also. Every display connector I've used supports UP TO a certain resolution, which means it supports lower resolutions than stated but not higher.

You're getting confused between what passive display connectors can do and what active display components can do.

Passive display connectors support a maximum resolution, which is based on their maximum data transmission; they can support any lower resolution as a result, since it just means transmitting less data.

Active display components - i.e. the things that generate the video signals and the things that display them - support only a subset of lower resolutions depending on their electronics. The Asus RoG monitor, for example, only lists 1280 x 960 as its lowest supported resolution. PG278Q, i.e. even though it can display 1080p, it can't deal with a 720p signal. (Now I haven't got one, so can't be sure, but it might be the case that someone can set their screen resolution to 1280 x 720 and it'll display. If so, what probably will be happening is the GPU is sending 1280x720 images translated into a monitor-supported format such as 1920x1080.)

What you're missing here is that VGA is analogue and HDMI is digital, so an HDMI-VGA convertor is an active component, which means it can only support a selection of resolutions, as illustrated in the two pages I linked to.

Here's another adapter that does a large range of resolutions including 720p, but it's £50, hence my recommendation that if the OP's monitor doesn't have DVI in, they're probably just better off getting a new monitor (since the display will be better if kept all digital).