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RX 480 4k@60hz via HDMI issue

Question asked by jtdoan on Sep 2, 2016
Latest reply on Jun 30, 2018 by ralphh

Hi all,

I have an issue with my brand new ASUS RX 480 DUAL 4GB. I have 1 LG ultrawide monitor and 1 4k tv both hooked up to my PC. I have no issue with the ultrawide monitor. But when I change the TV refresh rate to 60hz, the TV screen just go on and off repeatedly. Lowering the refresh rate down to 50 or 30 and the issue gone. Don't know whether this is a driver problem or a hardware problem. Hope someone can help me out.

 

Monitor: LG 29UM68-P

TV: Sceptre U500CV-UMK

 

PC specs

CPU: FX 8350

RAM: 8 GB

MOBO: Asus M5A97 R2

PSU: Evga 500w

GRAPHIC: Asus RX 480 DUAL 4GB

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