arc b580 no output signal via DP - HDMI cable

[belyjmrak]

Refuses to output signal from any DP port via DP - HDMI cable. The system is clean, I specially installed a new one. The BIOS is the latest, I specially updated it. The cable is 100% working, two video cards 980ti and 1080 do not complain about it. HDMI works without problems in any case. Does this card really not support cables of this type? It will be sad if so, because this is the only way I can use two monitors

[MUC]

You need a cable with an active protocol converter (PCON). This chip is usually integrated into the connector housing on the HDMI side. I use this cable and consider it the best and most compatible on the market. It contains the Synaptics VMM7100 (Spyder). Manufacturer's description:

• Certified by Intel for use on the latest Alder Lake CPU and Alchemist GPU platforms (DG2) based on the Xe-HPG architecture.
• Selected by Intel for Alchemist Reference Validation Platforms (DG2) (FRD7).

Do you have a link to the cable you're using?

To determine if your present cable contains a Synaptics chip, try the following:

• Download and unzip the attached ZIP file.
• Run VmmDPTool64.exe as administrator (right-click and select "Run as administrator").
• If there is no Synaptics chip in the connected cable, the tool will report that nothing was found.
• Otherwise, a screen similar to the one below will appear.
• Select the "Debug" tab (1) and click "FW Version" (2).

What is displayed as the [CHIP ID] and [Firmware Version] at (3)?

[belyjmrak]

Thanks for the answer, yes, apparently the cable turned out to be passive. I would never have thought about it. The problem is solved, a friend had a cable that was suitable.

[belyjmrak]

the cable that didn't work for me
https://a.aliexpress.com/_EJZp2N8