6/22/2023 0 Comments Switchresx 4k 60hz macIt would seem that the hardware is not an issue since it works after a reboot and works with my Dell Windows laptop. However I know it is, as all that is needed is a reboot. Release the shift key when you see the 'spinning gear' on the startup screen. When you hear the startup tone, hold down the shift key. To do that, turn your system off, then restart. I have tried Switchresx but hasn't helped since the Mac must be detecting that it is not possible. You will have to remove the defined resolution from the macOS monitor profile file that SwitchResX had modified. Wondering if there is anyway to force 60Hz since it has issues recognizing it. When I connect my Windows laptop to it, I don't have the same issue. It is random which of the monitors will revert to 30 Hz. After a little bit, with the mac going to sleep, one of the two monitors will revert to 30 Hz and cannot be set back to 60 Hz. My issue is that the refresh rate on one of the monitors will max out at 30 Hz. I have two 4k monitors connected via Display Port. You can also add resolutions such as 2560 x 1440 60 Hz like this, but without HiDPI, your monitor will be doing the stretching so it might not look as good.Hello, I have an Intel MacBook pro connected to a Thunderbolt 4 docking station. Back to 1080p HiDPI mode, tiny fonts even look very sharp so I don’t have to increase the size of the fonts anymore. If the screen was 38″, then it would have been useable. When used without any scaling by the OS, at UHD resolution, things became too small for normal use. We recommend setting it at 60Hz if possible but you can try experimenting with whatever options are available to see if it helps. I really like how sharp the text looks when using 1920 x 1080 50Hz with HiDPI. To change the refresh rate, you need to go to the Display settings on your Mac by going to System Preferences > Displays where you can manually change the refresh rate. From the “Current Resolutions”, you can now select 3840 x 2160 50Hz. If you have a small 28″ monitor, I recommend using 1920 x 1080 50Hz HiDPI, which still gives full advantage of the UHD resolution. After saving, reboot the machine, and you should see that this custom profile is Active now. Quit switchResX and it’ll ask to save the settings. Note that this number shouldn’t go over 450 MHz which is the limit of the intel Iris 5100 graphics. The rest should be configured automatically, and you’ll see the Pixel clock rate of 433.36 MHz. Supports display resolution up to 8K 7680×4320 at 60Hz or 4K 4096x2160 at 120Hz including 1440p at 240Hz frame rate including Supports HDR - Dolby Vision HDR, HDR10, HDR10+ and HLG Supports CEC-Tunneling-over-AUX as per mDP 1. Horizontal Active, and Vertical Active, and Vertical Scan rate. There are three boxes where you can fill the values in. The best place to check is on Apple’s Support website. In switchResX, select the monitor on the left, and on the right side you’ll see “Custom Resolutions”.Īdd a new profile by clicking the “+” sign on the bottom.Ĭheck the box for “Use simplified settings” and choose “CVT-RB v2”. Step 1: Check if your MacBook supports 4K resolution The first step is to make sure your MacBook supports outputting 4K signal to an external monitor. I bought this cable from Monoprice for about $8 shipped. When shopping for the cable, also make sure that it is DisplayPort 1.2 and not 1.1. Using switchResX, you can create a custom profile and make the display work at 50Hz through your miniDisplayPort (which is the Thunderbolt jack). UHD resolution at 30Hz will work without a problem using HDMI or miniDisplay port, but at 30 Hz any moving things on the screen, the mouse pointer, or scrolling becomes very sloppy and choppy looking. This is my experience with Acer CB280HK 4K 28″ ULTRA HD monitor I bought through Costco for $410. But before going ahead and buying one of these, you should make sure that your hardware can handle these. UHD resolution (also known as 4K) monitors are becoming more and more affordable these days.
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