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General 3D Discussions

radeon4ever
Journeyman III

6900XT gives black screen @ 3440*1440

Hello, 

I'm getting black screen 100% with my new 6900XT when playing games @ 3440*1440 on my Acer X34GS monitor.

Anyone has any idea what might go wrong here?

Thanks a lot!

2 Replies
majestynl
Journeyman III

Re: 6900XT gives black screen @ 3440*1440

I have the exact same issue. Its because the Adaptive Sync. When it's getting below the freesync range of 55-144fps the black screen flickering starts. I have contacted Acer and they want me to sent it back. They said they haven't heard before. Please contact ACER support team. This will push for a new firmware realise I hope. Looks like they haven't tested this well on a AMD card. 

I tried many many things. It's definitely the Monitor in combination with a amd card. Also tried it with a Vega card. Same issue!!

I do see similar issues with Enhanced Sync on amd release notes / known issues but those aren't fixed for a long time. So don't trust this will be fixed from AMD side soon.

Samsung did had similar issues and they fixed this with a monitor firmware update.

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majestynl
Journeyman III

Re: 6900XT gives black screen @ 3440*1440

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