On MacOS the Radeon Pro 580X can use two Apple XDR (HDR) 6K displays 6016x3384 at 60Hz or two 5K displays 5120x2880 at 60Hz.
I bought one 21:9 5K display 34WK95U from LG 5120x2160. It' a certified hdr monitor with thunderbolt 3 port.
Well, the HDR mode is not available on MacOS and partially on Windows 10 (TB3 port used)
On Windows 10 (bootcamp) the HDR mode is available only at lower resolutions, for example 3440x1440 with blurry effect because it is interpolated.
On Windows 10 at 5120x2160 enabling the HDR mode the monitor turns black and stucks, I have to unplug the power cord, turn it on again, plug the HDMI cable to select another output of the Radeon 580X and deactivate the HDR option of the second display (tb3 output)
No problems with Nvidia GTX or RTX gpus, the HDR is properly visualized at the maximum resolution.
The Radeon Pro 580X sucks or Apple limited the use of this gpu with non Apple displays. Also it'a a shame I can't use non Apple displays HDR certified on MacOS
regards.
I bought one 21:9 5K display 34WK95U from LG 5120x2160. It' a certified hdr monitor with thunderbolt 3 port.
Well, the HDR mode is not available on MacOS and partially on Windows 10 (TB3 port used)
On Windows 10 (bootcamp) the HDR mode is available only at lower resolutions, for example 3440x1440 with blurry effect because it is interpolated.
On Windows 10 at 5120x2160 enabling the HDR mode the monitor turns black and stucks, I have to unplug the power cord, turn it on again, plug the HDMI cable to select another output of the Radeon 580X and deactivate the HDR option of the second display (tb3 output)
No problems with Nvidia GTX or RTX gpus, the HDR is properly visualized at the maximum resolution.
The Radeon Pro 580X sucks or Apple limited the use of this gpu with non Apple displays. Also it'a a shame I can't use non Apple displays HDR certified on MacOS
regards.