Hi,
RX 580 only gets 4K@30Hz in Window 10 using HDMI connection.
4K@30Hz is achieved with disabling HDMI Deep Color setting on LG 4K Monitor, it gets a blank screen if HDMI Deep Color is enabled.
Using macOS Catalina (the same PC, Monitor and HDMI Cable), it can get 4K@60Hz. with HDMI Deep Color enabled in the monitor.
Using DisplayPort connection, it can get 4K@60Hz on both Windows 10 and macOS Catalina.
So I think there is a problem in AMD graphics driver.
Any solution on this problem is appreciated.
Br,
-Firman-
AMD Graphics Card: XFX RX 580 8GB
Desktop System
Operating System: Windows 10 64bit
Driver version: Radeon Software Version 20.2.2
Display Devices: LG 4K HDR 27UL600 3840x2160 @30Hz HDMI
Motherboard: MSI Z77A-G45 Biso Version V2.12
CPU: Intel Core i7-3770K
Power Supply Unit: Corsair CX 750M
RAM: 16GB
