Amd 5700xt hdmi bug?

[Dutch_Benjie]

Hi all,

 

I'm trying to get my head arround this...

I build my new rig yesterday:  

 

CPU: AMD Ryzen 7 3700X processor

MEM: Corsair DDR4 Vengeance LPX 2x8GB 3200 C16 

MOTHERBOARD: MSI B450 TOMAHAWK MAX

GPU: PowerColor Radeon RX 5700 XT Red Dragon

SSD M.2: Samsung 970 EVO 1TB M.2 SSD

PSU: AeroCool Xpredator 750M

 

But i have a issue with my hdmi connection to my tv (UHD 4K Samsung)

When i plug the displayport in to my monitor (UHD 4k, Samsung) it works great, plug in monitor and tv it also works but now the following:

• I cant select the tv as main monitor..when i do that everything just turns black.
•  Expand: same
• I can make the tv the main monitor (i is it for gaming primarily).
• When i have the HDMI plugged in solo the tv says it no source..when i plug the displayport back in it turns on.
• If they both work and i turn of my monitor the tv screen goes black.

 

Problem is i can make the tv the main desktopscreen and start games on it but some games just startup on the other monitor.

Resultions:

• Monitor 3830x2160 @ 60Hz 
• Tv: 1920x1080 @ 60Hz, in game i can change it to 4K

 

Previously i had the tv and monitor connected via a gtx 970 and that just worked fine and i could do all the above

 

Wondering if of you have a suggestion?

Do i need to get a displayport > HDMI adapter?

 

P.s. the hdmi cable is over 15 meters / 49 feet HDMI 2.0 but it never gave a problem

 

 

 

-Edit: I found the issue, apparently the graphicscard does not like it when you have HDMI UHD COLOR on, turned it off an now i can select all the options.

          When i turn it back on: no signal and both screens go black...so problem solved

[5x5]

that's a pretty long cable - are you certain it's not damaged?

 

My best guess - you need an active adapter (not passive)

[Dutch_Benjie]

Just now, 5x5 said:

that's a pretty long cable - are you certain it's not damaged?

 

My best guess - you need an active adapter (not passive)

I need this lenght to get to the other side of the room

It worked just fine till the day before yesterday and it still shows the screen and passes audio also to my soundbar