![]() Here, I have two external displays connected to my laptop (whose internal display is turned off and is not showing). Its truly disappointing given they have always. With the Arc Hub, the best I can get is 1080P at 60Hz or 4K at 30 Hz. When I hook up my 27' 4K monitor through a monoprice USB-C to display port adapter, I get full 3840x2160 resolution at 60Hz. Select your display in the left pane and click the Custom Resolutions tab. I have, unfortunately, found the same issues with regards to the Arc Hub and 4K compatibility at 60Hz. In a Terminal window type: csrutil enableĭone. Any ideas why my MBP MacBook Pro (13-inch, 2017) can't drive 4K We have a 4K A/V system as well as Dell P4317Q 4K monitors at work and my laptop just isn't able to run them reliably. In the menu bar, go to Utilities -> Terminal to open a shell, and type:Īfter you’re done playing with SwitchResX, reboot the Mac and Cmd+R again.Release the keys and let it finish the boot process. Restart your Mac, holding Cmd+R until you see the Apple logo.The one thing to remember, is to turn SIP back on, after you’ve finished creating your resolution. Disabling SIPĭon’t ask me why we have to disable a system security feature to tweak our displays, but that’s how it is. Or, like me, if you’re bad with numbers use a resolution scale calculator to be on the safe side and get a list of compatible resolutions for your screen, based on its default resolution. Google you model if you’re not sure what it is. It’s 16:10, in my case, many displays are 16:9. Unless you want to see things distorted on your screen, your new resolution must use the same ratio as your display. So I think my mid 2012 rMBP is struggling a little bit with its current workload. But I know Active Horizontal, Active Vertical and Scan rate (the one defined in Hz, the rightmost at the bottom of the screen, not the one in KHz next to it) are the values to keep in mind. I have no idea what all these values mean. I have my monitor connected to my MacBook via a Wavlink WL-UMD502 docking station and a HDMI 2.0 cable. In the left pane, select your display and click the Current Resolutions tab. However, when I connect it to my 2016 MacBook Pro 15' running macOS Monterey, I am unable to run it at 4K 60Hz - I can run it at 4K, or I can run it at very low resolutions and 60Hz (for example, non-HiDPI 1440p could be enabled with SwitchResX). I repeat: you must not use settings over what your display is physically capable of, or things will go wrong, and getting them back in order is no fun if you don’t have a second screen.Īfter installing SwitchResX, go to System Preferences->SwitchResX. That adapter just allows the faster HDMI 2.0 signal to go thru. You need to install SwitchResX before you can do anything. Yes, the new MacBook Pros can output 4K 60 Hz Just check Apple’s tech specs for the laptop in their home page. Do not forget to turn it back on after you’ve created your custom resolution(s). You will need to use the Terminal to deactivate SIP - what the heck is SIP?.The latest Retina MacBook Pros and Mac Pros support HDMI connections to UltraHD TVs the Mac Pro also has the option of driving multiple 4K displays via its Thunderbolt 2 ports. So, take your time and if you don’t feel confident enough to do it by yourself, don’t do it by yourself. People who have used those Macs and iOS devices know that Apple handles backwards compatibility very well. Playing with custom display resolution is not complex, but it’s easy to screw up and turn your monitor to full black without an easy way out.I will show how to check these in a moment. Also, you can’t use a screen refresh rate (the Hz thingy you will often see printed next to its resolution in product reviews) higher than what your screen is capable of– really, you don’t want to do that. SwitchResX is no magical wand, there is no way to turn your 1080p display into a 4 or 5K one. Maybe you want things on screen to be a bigger so you can see them from farther away? Or whatever. Switching the Resolution selector in the System Preferences probably made macOS rescan the connection and remember the updated DisplayPort 1.2 capability.Yesterday, I mentioned using SwitchResX to create custom screen resolutions when those provided by Apple are not enough to compensate for my bad eyesight.īut you don’t have to have a bad eyesight to create a custom resolution. What I believe might have happened is, that when I had first connected the display, it was still set to DisplayPort 1.1, and I assume my Mac remembered this. After that, even re-selecting "Scaled" keeps my monitor at 4k60Hz. The original setting was:Īnd this setting delivered Choosing "Default for display" changed it to 60Hz. The second point, however, is a bit weird. The first point is pretty obvious, given that DisplayPort 1.1 only supports 30Hz for 4k. Choose "Resolution: Default for display" in my Mac's System Preferences/Displays.Enable DisplayPort version 1.2 in the monitor's menu.On my Philips 328P6V monitor, using a USB-C to DisplayPort cable with my MacBook Pro (15 inch model from 2019 with Radeon Pro 560X), I first was stuck at and couldn't get (even though the cable supports it).
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