are hdmi to vga adapters bidirectional?
602618
Yes, those are different types of converters. One converts Analog to Digital (VGA to HDMI) and the other converts Digital to Analog (HDMI to VGA). There are some devices available that do both, but the connectors are not bi-directional meaning there will be an input and an output of each connector type.
23473
The first and probably most important is that VGA uses an analog signal and HDMI uses a digital one. Due to that, running a VGA signal directly into a HDMI connector on a monitor could actually damage it, because the analog signals is at a higher voltage level.
1370667
a vga to dvi adapter converts the vga to an analog dvi signal. a dvi to hdmi adapter converts a digital dvi to an hdmi signal. there is nothing between there that converts an analog dvi to digital dvi. ... I have VGA in mine and it does not work !
196224
Only From VGA to HDMI: This VGA to HDMI converter cable is one-way Design. It only converts from VGA (analog signal output such as PC/laptop/HD TV-Box) to HDMI (digital signal input such as monitor, HDTV, projector). Can NOT be used as a HDMI-to-VGA converter cable.
1475599
DVI-I carries both analog and digital signals. The simple DVI to VGA adapter you used previously allowed for a simple conversion. However the DVI-D port on your graphics card is digital only and needs to be actively converter to an analog signal that your old VGA display can accept.
71740
Plug the cable of the first external monitor to the correct video port on your laptop. So I plug the VGA cable of the first external monitor into the VGA port on my laptop. Plug the cable of the second external monitor to the other correct port on your laptop.
1470996
Most computers have the VGA, DVI and HDMI connection ports with some laptops coming with thunderbolt, USB ports and an HDMI adapter only. So, for example, if your monitor has a VGA connection, and so does your computer, then use a VGA cable to connect the two. ... The same applies to any port and cable you may have.
38506
The VGA to DVI converter connects computers with HD-15 connector to a digital monitor or projector. The converter changes your PC analog VGA signal to digital graphic signal so that digital display device or projector can be connected to your PC analog output easily and conveniently.
676392
Another way to connect an older desktop computer to the HDMI input of a TV is with an adapter. If your computer has just a VGA output you'll need a VGA-to-HDMI converter. This type of converter combines a VGA input and a stereo audio input into a single HDMI output that's compatible with your HDTV set.
1089258
The second difference between VGA and HDMI is that VGA is just video, while HDMI contains channels for both video and stereo audio. So, when you connect them together, you need to bring the audio signal from the device which has the VGA connecter, via a separate cable, and connect it to the HDMI connector.
8384
Most computers have the VGA, DVI and HDMI connection ports with some laptops coming with thunderbolt, USB ports and an HDMI adapter only. So, for example, if your monitor has a VGA connection, and so does your computer, then use a VGA cable to connect the two.
1211082
Here's another direct quote: "HDMI 2.0, which is backwards-compatible with earlier versions of the HDMI specifications..." Version 2.0 (like 1.4 before it) is entirely a hardware change. It is not a cable change. ... Your current High Speed cables should work just fine.
623161
Since your laptop doesn't have a VGA port, you should acquire a HDMI to VGA adapter. The HDMI to VGA adapter enables you to link the HDMI output from your computer/laptop onto the VGA projector.
479040
HDMI and DVI are completely interchangeable due to using the exact same video signal. ... VGA is analog and is not compatible with HDMI/DVI.
728498
Well, VGA is RGB, but RGB is not VGA. Red Green Blue is the three analog signals that are transmitting on a variety of different cable. Component carries each signal and then recombines them. VGA sends them, but also send information to the monitor regarding resolution and frequency.
861713
The "simple" HDMI to VGA cables will not work quite simply because HDMI signals are pure digital and VGA is analogue.
309066
Browse Encyclopedia. The HDMI interface is electrically identical and compatible with the video-only DVI interface, which came first. For example, if a cable box or PC has DVI out, but the TV or monitor only has HDMI in, a DVI-to-HDMI adapter cable is used to connect the video. ... See HDMI and DVI.