I remember learning about the 5v pin when working in an IT service desk. Displayport cables (at least the old ones, i dont know if the new ones have it) didnt have the 5v pin so when converting to hdmi, hdmi had to be the source/input and the displayport had to be the output. Unless the converter had a usb or power cable input but we didn’t buy those as standard.
The number of tickets that people were faffing around trying to work out why the cable wasn’t working that were solved by me spending 5 minutes doing a google search was embarrassing. And i still had to tell them again, all the time.
Learning about that lead to learning about all different display conversion cables and which worked and which didnt. And the various types of dvi cables.
Maybe you can tell me why I can’t find a usb-c to dual link DVI cable that is actually dual link and also didn’t lie about being dual link even when it explicitly said it was dual link on the box.
I think you need an active usb c to dvi-d to get thisnto work. Unfortunately ive not come across this need before but i have looked into it and it would seem the only options to get the full resolution and refresh rate of dual link dvi is woth an active usb c to dual link dvi cable OR with a usb c to displayport cable then a display port to dual link dvi cable
If usb c is the source the above should help.
If dual link dvi is the source then you need to make sure that the usbc end supports display port alt mode. Otherwise it the same as above. Dvi to dp to usbc.
But this is all info i just read and may be wrong, and you also canr account for cheap converters lying about what they support.
Yeh I figured it needed to be active, couldn’t find any and the ones that claimed (and ultimately turned out to be lying) to be dual link weren’t active so unsurprising they didn’t work.
That’s a very interesting idea about the double conversion with displayport though, I never thought of that. Are the displayport to DVI dual link cables easier to get or are they unicorns as well?
I remember learning about the 5v pin when working in an IT service desk. Displayport cables (at least the old ones, i dont know if the new ones have it) didnt have the 5v pin so when converting to hdmi, hdmi had to be the source/input and the displayport had to be the output. Unless the converter had a usb or power cable input but we didn’t buy those as standard.
The number of tickets that people were faffing around trying to work out why the cable wasn’t working that were solved by me spending 5 minutes doing a google search was embarrassing. And i still had to tell them again, all the time.
Learning about that lead to learning about all different display conversion cables and which worked and which didnt. And the various types of dvi cables.
All interesting stuff.
Maybe you can tell me why I can’t find a usb-c to dual link DVI cable that is actually dual link and also didn’t lie about being dual link even when it explicitly said it was dual link on the box.
I think you need an active usb c to dvi-d to get thisnto work. Unfortunately ive not come across this need before but i have looked into it and it would seem the only options to get the full resolution and refresh rate of dual link dvi is woth an active usb c to dual link dvi cable OR with a usb c to displayport cable then a display port to dual link dvi cable
If usb c is the source the above should help.
If dual link dvi is the source then you need to make sure that the usbc end supports display port alt mode. Otherwise it the same as above. Dvi to dp to usbc.
But this is all info i just read and may be wrong, and you also canr account for cheap converters lying about what they support.
Yeh I figured it needed to be active, couldn’t find any and the ones that claimed (and ultimately turned out to be lying) to be dual link weren’t active so unsurprising they didn’t work.
That’s a very interesting idea about the double conversion with displayport though, I never thought of that. Are the displayport to DVI dual link cables easier to get or are they unicorns as well?
We used displayport to dvi all the time in that job. Both dvi i and dvi d