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3 out of 4 screens are working, can't get the 4th to work

Operating System

Windows 10

Computer Specs (PSU, GPU, CPU, RAM, Motherboard)

LG43UD79 quad monitor: 2 HDMIs 4K 60P, 2 HDMIs 4K 30P and 1DP input.

AMD R9 370 graphics card: 2 DVIs, 1 HDMI and 1 DP output.

Speccy Link

N/A

Description of problem

The fourth area of the quad monitor always stays black.

When this issue began

Last Week

Recurring issue

No

Date of purchase

15/09/2017

Under Warranty

Yes

Cause/Steps to recreate the issue

I plugged everything behind the monitor with the right cables:* DP to DP cable* DVI to HDMI cable* DVI to HDMI cable* HDMI to HDMI cable

What I've tried so far to resolve the issue

  • Tried to reinstall the graphics card driver from scratch, nothing changed.* Tried to use an older version of graphics card driver but it doesn't exist.

  • Tried to switch cables behind the monitor. The black area of the 4th just moves to another area of the monitor.

  • I had DVI-HDMI adaptors and purchased cables that are HDMI-DVI ready but it didn't help.

Is the graphics card really the problem? On AMD website it writes:AMD EYEFINITY TECHNOLOGY1 (MAXIMUM DISPLAYS) 3 with DVI/HDMI, 4 using DisplayPort, 6 with an MST hubThanks!



Submitted September 29, 2017 at 06:34PM by emphase http://ift.tt/2x1Oduz
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