PC Graphics

[pcgeek]

Describe your system:

• AMD Graphics Card
  • HD6970
• Desktop or Laptop System
  • Desktop
• Operating System
  • Windows 10 64bit
• Driver version installed
  • 15.201.1151.1008 in Device Manger -
• Display Devices
  • Philipes 244E - Connected via DVI
  • Philipes 244E - Connected via HDMI
  • ASUS VS278 - Connected via DP
• Motherboard + Bios Revision
  • MSI A55M-P33
• CPU/APU
  • AMD A6-3500 Llano Triple-Core 2.1GHz (2.4GHz Max Turbo) Socket FM1 65W AD3500OJGXBOX Desktop APU (CPU + GPU) with DirectX 11 Graphic AMD Radeon HD 6530D
• Power Supply Unit  Make, Model & Wattage
  • CX430M
• RAM
  • 8GB

Describe your issue:

• I have had 3 displays running on my Radon HD 6970 for years. Recently I upgraded to Win10 and all worked fine. I was in Cataylist Control center, and pressed "Create a Eyefinity Display Group". It was around this time that the 3rd monitor turned off.
• Ive tried to uninstall all video drivers and reinstall, check all settings,

Any help would be appreciated.

[elstaci]

This thread  from Tom's Hardware might explain why your HDMI doesn't work in Eyefinity: HD6950 only 2 monitors at a time - [Solved] - Displays

BEST ANSWER

unksol  Dec 10, 2012, 1:03 AM

You cannot hook up 3 monitors to eyefinity without using display port. The HDMI and single link DVI port share the same single and cannot be used at the same time. You must use an active display port or mini display port to single link DVI adapter to connect the 3rd display. They are about $25. It MUST be active. Not passiveOn a side note this has been answered hundreds if times on this forum, AMD tells you this all over the eyefinity Page, and google would have found out in seconds. You'll get faster answers that way....

Another thread concerning 3 monitors on HD 6970: 3 monitor setup on 6970 - [Solved] - Displays - Tom's Hardware

randomkid  May 23, 2012, 10:24 AM

In the graphics card, there are normally two DVI ports. One of the DVI ports is the DVI-S which shares the clock with the HDMI port & only one of them can work at the same time. Perhaps you used this DVI-S port.

Try to connect your 21" to the "other" DVI port.

Another thread concerning HD 6970 with three monitors: Three Monitor Setup on a Radeon 6970. | guru3D Forums

ok, was just making sure, as far as i know you cant use the HDMI and the 2 DVI's because one of the DVI's is on the same link as the HDMI.

Why the DP-DVI adapter doesnt work with the 2 other DVI's im really not sure, heres a list of the recommended adapters - http://support.amd.com/us/eyefinity/Pages/eyefinity-dongles.aspx

You cant go above 1920x1200 resolution on 1 screen with a passive adapter but theyre a lot cheaper.

Im using 2 DVI's and an active adapter for the DP->DVI without any issue( just pointing out that its pretty much the same as yours apart from the adapter ).

Can you try it like this:

1 HDMI

1 DVI

1 miniport->DVI

if that doesnt work

swap the DVI to user the other DVI

You could be connecting the DVI & HDMI that use the same link so swapping to the other DVI should work.

What resolutions are each monitor set for?

I’ve heard all of the monitors need to be the same resolution for AMD Eyefinity technology to work. ...

How to setup and configure Eyefinity: Setting Up and Configuring Multiple Displays to Run in AMD Eyefinity Mode

Here is Eyefinity FAQ page: AMD Eyefinity™ Technology - Frequently Asked Questions (FAQs)

From AMD Support on the HD 6970 Spec: AMD Radeon™ HD 6970 Graphics

CUTTING-EDGE INTEGRATED DISPLAY SUPPORT	DisplayPort 1.2 Max resolution: 2560x1600 per display Multi-Stream Transport 21.6 Gbps bandwidth High bit-rate audio HDMI® (With 3D, Deep Color and x.v.Color™) Max resolution: 1920x1200 Dual-link DVI with HDCP Max resolution: 2560x1600 VGA Max resolution: 2048x1536