![]() ![]() VGA to HDMI adapters converts an analog VGA input to a digital HDMI output. VGA to HDMI adapters are very different from HDMI to VGA adapters. I suspect the maximum resolution is determined by the quality of the video card (hardware on both the monitor and video card (matched impedances) and the quality of the cable) it goes into transmission line effects the higher the frequency (resolution) the more pronounced the parasitic effects can become also the length of the cable is a factor Consult Smith Charts ĭVI cables “reject” noise better since this type of cable specifics twisted pair this reject EMI better than just a shield I suspect DVI cables also have a shield in addition to twisted pairs Consult Wiki for VGA spec and DVI spec it's probably stated in the specifications.FAQ Q: Is There a Difference Between VGA to HDMI and HDMI to VGA? They are used in a multi-monitor workstation using GeForce 9600GT boards (maximum capable digital display resolution is 2560 x 1600 (i.e., DVI) maximum (VGA is 2048 x 1536) per the GeForce. I use several Samsung capable 1920 x 1200, (WUXGA, (default resolution or “optimal”) monitors (Models 245BW, 2443 BWT, and a think a T240HD) all of which have a VGA, and a DVI connector. ![]() This may not have helped solve your problem, but I hope it helped explain it! Interestingly, the telecom industry consortiums tend not to mandate too many changes requiring equipment and certainly cabling/infrastructure changes because the incurred costs would be paid by themselves! Thus, you end up with some of the examples above where the necessity to push the limits of existing cables resulted in some excellent innovation. It's called "planned obsolescence", and sadly you appear to be another victim! Don't worry - you're in good company(everyone)! It's all fairly open and public actually - but collusion nonetheless in most cases to create a trickle of technology that forces people to constantly upgrade their equipment - in your case, by artificially restricting the VGA input on your monitor. USB 2.0 or 3.0, HDMI 1.3 or 1.4, DVI-I or DVI-D, 720p or 1080p, MiniSD or MicroSD, they are all decided upon years before they are released, and roadmaps are drawn up to plan out their deployment. From year to year they dream up new versions of cables and encoding, and impose them on the industry in the following years. I assure you that if you are having problems sending a 1920 x 1080 signal through a VGA cable, it is almost certainly an artificial limitation created either on the end of your PC, or your monitor(in this case it sounds like you monitor) - most likely due to the industries fascination with forcing people to migrate from one technology to another in the hopes of being the lucky one who gets to sell you something new! All of the standards in the technology we use are agreed upon at public international conventions for consortiums of electronics manufacturers. A Cat5 cable that is often employed to send up to 4 streams of HD, total equivalent resolution of a whopping 7680 x 4320, has only 8 conductors! There are many other examples of this, particularly in the telecom industry, where it is necessary to find ways of using older existing cables to solve modern problems -if you're interested, just ask the humble fiber-optic cable, which recently passed a new landmark in transfer speeds exceeding its old one by 100 times! A VGA cable has 15 conductors running through it, as well as a shield. These are both examples of relatively low bandwidth 2 conductor cables carrying many times the amount of data they were originally intended to. This is also true of the power cables running through your house using specially designed equipment, you can send internet and HD signals from one power outlet in your house to another using the existing cable. For instance, standard coax cable, used for antennas and SD television for years and installed in countless homes, can now be used to send multiple HD streams as well as internet signals by employing clever coding techniques on either side of the signal. In theory, the resolution/amount of information that can be sent through any cable is mostly limited by the processing on either side of the cable. It works very well with a standard ATI x800 video card. I own a 2048 x 1536 resolution monitor that has as its only input option a single VGA cable.
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