Cannot get native resolution - Intel Graphics Driver 530 on i5-6400.

[idata]

I have an Acer desktop:

i5-6400

Intel Graphics 530

16GB RAM

two HDMI ports

Windows 10 Home 64-bit

I am using the intel graphics driver version 23.20.16.4849, dated October 27, 2017.

Until recently, I had been using an ASUS monitor 22" at 1920x1200. Everything was ok.

I bought a larger monitor (HP ZR30w, 30", native resolution 2560x1600.)

The intel graphics driver detected the new monitor. However, the max resolution I can choose is only 1280x800.

I tried custom resolution in Intel Graphics utility to change to 2560x1600, but it gave me the notorious "custom resolution exceeds the available bandwidth capacity"

even when I tried the 1920x1200 resolution, which was working perfectly fine on the older monitor, I received the same error.

Any thoughts?

[Stefan3D]

According to https://support.hp.com/us-en/document/c02159509 HP ZR30w 30-inch S-IPS LCD Monitor - Specifications | HP® Customer Support your monitor has no HDMI port, but the Acer desktop has only HDMI ports?

You are probably using an incompatible adapter.

[idata]

Thanks for your reply Stefan3D. I should have mentioned that. I use a Dual Link DVI-D adapter with my HDMI cable. I made sure the adapter is dual-link. I also tried with a different DVI monitor a 24" Dell LCD from a friend. This monitor has native resolution of 1920x1200. This time, my Intel Graphics panel showed resolutions up to 1920x1200. But when I re-connected the HP monitor, it was back to only 1280x800.

Any thoughts?

[Stefan3D]

Intel Graphics Controllers do not support DVI Dual link connecters/adapters/dongles.

source:

Try a HDMI-DP adapter, start at 3 Euros on ebay

[idata]

Hi Stefan3D, thank you for the suggestion about going the DP way instead of DVI. Unfortunately it did not work, but here are details.

It turns out most (almost all) HDMI-DP adapters are the reverse of what I need. They all help connect a DP source to a HDMI display. You are right, there are dozens of these available on eBay and Amazon for less than 5 USD.

However, they all mention that they are not bidirectional, and WILL NOT work if the source is HDMI and display is DP (which is my case).

After a lot of digging, I found one (yes, only one) such adapter on Amazon.

https://www.amazon.com/gp/product/B01BXMOREI/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 Amazon.com: gofanco 4K x 2K HDMI to DisplayPort Converter Adapter with USB Power for HDMI equipped systems to connect to…

Here is the link above. It was a lot more expensive than the HDMI-DP adapters I mentioned earlier. But it clearly said that this adapter is for HDMI PC and DP monitor. It also has USB power to make it "active" So I ordered it.

Unfortunately, the result is the same as before. Intel Graphics recognizes the monitor correctly, but I still only get 1280x800 resolution.

I read somewhere that the wrong HDMI cable might be a problem. But in this case that is not the issue because the adapter comes with its own HDMI connection and cable.

Strangely, I tried the same setup (i.e. my new adapter and DP monitor) with a colleague's computer who had an HDMI card (nVidia GTX 650). This time, we could see all resolutions and set the monitor to 2560x1600, it's native resolution.

Any thoughts?