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RX 560 Triple Monitor Issue and HDMI Issue

Question asked by uwzl on Sep 24, 2018
Latest reply on Jan 2, 2019 by uwzl

I have two issues with the following triple monitor setup and my RX 560 card under Win 10/64:

 

LG 27UD58B 4k Monitor connected DP - DP

Samsung 28UE590D 4 Monitor connected HDMI -  HDMI

Panasonic TX-L40EX34 FHD TV connected with DVI -> HDMI cable

 

Probably since the last few driver updates under some conditions (e. g. rebooting, sometimes after sleep) the system hangs with black screen. A

fter unplugging the TV and rebooting, Windows starts up normally. When windows has booted, I am able to plug in the TV and all three screens work fine.

As I have exchanged one Monitor (from an LG 22" FHD to 27" 4k), it might only be an issue with both 4k screens. With 4K/FHD/FHD TV it worked fine.

 

Second issue is HDMI Sync on my Samsung 28UE590D: The Monitor regularly loses sync (1 second black screen), when connected to its HDMI 2 port (HDMI 2.0), connected to its HDMI 1 port (HDMI 1.4) it works fine, but only with 30 Hz refresh rate. I currently have changed the LG's and Samsung's connections (LG HDMI, Samsung DP).

Until now, no sync issue @ 59.9 Hz.

 

Is there a perspective to get fixes for these issues?

 

Best regards,

uwzl

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