If one doesn't support the 4K resolution then it would be expected to automatically drop it to a supported resolution. MacOS should see and set the default display resolution based on the component capabilities. Ensure the connectors are fully seated in the display and dGPU, again I expect you have done this many times already. I would suggest you look at the cables you are using to see if they are compatible, you probably have done this already. Using the correct 1.4 compatible cable is essential for this type of resolution.
The DisplayPort Connections on the RX 5500 XT are version 1.4, which are also capable of running a 4K screen, not sure if it can run a pair of them, but it can run the 4K screen 144Hz. This is assuming you have a 4K capable HDMI cable. I know this has got to be something dumb that I'm overlooking because I'm new to this, so I'm looking forward to someone pointing out the stupid thing I forgot to do.Īccording to the AMD specification for your RX 5500 XT is capable of running a 4K screen using the HDMI connector.
I'm running Opencore (whatever the newest is, I updated it last night), verified my ist file using the sanity checker, and verified that NVRAM -> Add -> 4D1EDE05-38C7-4A6A-9CC6-4BCCA8B38C14 is `02`in addition to the other things listed here, with the exception of setting AppleDebug to false (I'm still debugging, after all). Maybe it wouldn't be cranked all the way up to 4k, but I would expect better than 1080 for sure.įor what it's worth, if I do adjust the screen size to a "Scaled" option, I can get to something that looks more like what you would expect it to look like "out of the box," but the login screen still renders at 1080, and presumably also would any other user accounts that are created since I'm just adjusting my personal preference by changing the display option in the system prefs. Maybe? I've got a 5k iMac that, by default, outputs 2560x1440, so I would expect a similar behavior from the 4k screen.
I can adjust the scaling on the display through system prefs to achieve a higher resolution, but I feel like I shouldn't have to do that. I'm having an issue getting my display to output higher than 1080p. Building a CustoMac Hackintosh: Buyer's Guide
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