Just hooked up a Samsung U28R55 monitor and it won’t take full resolution. Here is the setup:
M1 Mini -> Left via HDMI direct to M1 -> Plugable -> Centre via HDMI -> Right via DisplayPort Chipset Model: Apple M1 Type: GPU Bus: Built-In Total Number of Cores: 8 Vendor: Apple (0x106b) Metal Family: Supported, Metal GPUFamily Apple 7 Displays: U28E590: (Left) Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition) UI Looks like: 3840 x 2160 @ 30.00Hz Main Display: Yes Mirror: Off Online: Yes Rotation: Supported Automatically Adjust Brightness: Yes ASUS PB278: (Centre, rotated) Resolution: 1440 x 2560 UI Looks like: 1440 x 2560 @ 60.00Hz Mirror: Off Online: Yes Rotation: 90 Automatically Adjust Brightness: Yes Lu28R55: (Right) Resolution: 1920 x 1080 (1080p FHD - Full High Definition) UI Looks like: 1920 x 1080 @ 60.00Hz Mirror: Off Online: Yes Rotation: Supported Automatically Adjust Brightness: Yes
I’ve been through the menus twice and I can’t seem to get full res on this new monitor. Any ideas how I can fix this?