HDMI to DisplayPort, any drawbacks?

Are you sure about HDMI->DP? This is the one direction of conversion that I believe requires an "active adapter" (quite expensive, relatively speaking). In other words you buy a "box" like this one, and plug one standard HDMI cable into its HDMI input connector from your graphics card, and then you plug a second DP cable into the box's second connector and on to the monitor.

I don't believe there are simple passive HDMI->DP cables, whereas there are conversion cables for all other types of 2-ended adaptation. DP in particular can only be connected to with a passive cable from a DP source. In contrast there are inexpensive 2-ended passive adapter cables to go from DP to DP/HDMI/DVI, and from DVI to HDMI/DVI, and from HDMI to HDMI/DVI. But going to DP requires either a DP source or an expensive active adapter box solution.

Note that having an HDMI source and going through an adapter box to DP on the monitor, you will be limited to 1920x1200 resolution... at least on that Startech adapter box.

AddRAM said:

I don`t see any problems with HDMI to DP.

hdmi to displayport cable - Newegg.com

Look at what you're pointing to. These are NOT HDMI-to-DP cables. They are DP-to-HDMI cables, and they CANNOT BE USED TO ACCOMPLISH HDMI-TO-DP.

As I said previously, you can go from DVI to DVI/HDMI by simple passive cable, and you go from HDMI to DVI/HDMI by simple passive cable, and you can go from DP to DP/DVI/HDMI by simple passive cable. But you CANNOT go to DP by passive cable from any source other than from DP. You CANNOT go from DVI to DP, and you CANNOT go from HDMI to DP... using a simple passive cable.

To the best of my knowledge, you MUST USE AN ACTIVE CONVERTER to go from HDMI to DP, using that specific expensive Startech adapter gizmo. And you're limited to 1920x1200 on the display.

rvcjew said:

If your in the USA then definitely hit up monoprice for your cable. Even the 15 foot is a great price but shipping international sucks if you need that. https://www.monoprice.com/product?c_...seq=1&format=2

This is getting very frustrating. Nobody seems to be reading what's been said on this post, and people are providing links to products that are absolutely wrong for the subject being discussed.

This latest mistake is an HDMI-to-DVI cable. What does that have to do with the discussion about DisplayPort input to a monitor? This cable from Monoprice that you're pointing to is completely irrelevant. The OP said he only had a DisplayPort input on his monitor, and didn't have the DVI option (otherwise your HDMI to DVI cable WOULD be appropriate).

One last time, I will try to express the bottom line here: DisplayPort input to monitors can only be fed via simple passive cable from DisplayPort output from graphics cards. That's the law. DisplayPort input is different from other digital video connections which work fine using passive 2-ended adapter cables, in that DISPLAYPORT INPUT CANNOT BE CONNECTED TO PASSIVELY VIA SIMPLE CABLE FROM ANYTHING OTHER THAN A GENUINE DISPLAYPORT OUTPUT FROM A GRAPHICS CARD.

The one exception here is that if you use an ACTIVE ADAPTER, such as the StarTech gizmo I pointed to long ago, you now CAN go from HDMI output on your graphics card to the HDMI input of the ACTIVE ADAPTER. And then you can go from the DisplayPort output of the ACTIVE ADAPTER to the DisplayPort input of the monitor. That is the ONLY WAY YOU CAN GO FROM HDMI OUTPUT ON A GRAPHICS CARD TO DISPLAYPORT INPUT ON A MONITOR.

Again, DisplayPort-to-HDMI 2-ended adapter cables ARE NOT REVERSIBLE!!! These ARE NOT 2-WAY bi-directional, and you cannot just use them to go from HDMI to DisplayPort by connecting them to the appropriate two connectors on the two devices. THIS DOESN'T WORK!!! They only can be used to go from DisplayPort to HDMI, not from HDMI to DisplayPort.

Please... this subject has now been discussed to death, I hope. Upgrade your monitor, or upgrade your graphics card, if you don't have a proper pair of connectors. Specifically if you have a modern graphics card with at least DisplayPort output, well now you can use an inexpensive 2-ended passive cable to connect to anything you want on the monitor: DisplayPort, HDMI or DVI. Because DisplayPort as a source connector can be "adapted via 2-ended passive cable" to any of these three choices as a target connector... because that is the design of DisplayPort.

But DisplayPort was also designed to NEVER BE FED FROM ANYTHING BUT DISPLAYPORT!! And that's what the expensive active adapter does, i.e. makes it true that the source to the monitor via that cable from the adapter is actually DisplayPort even though the true input coming from the graphics card to the adapter was actually HDMI.