Refresh rate mac os

Change the refresh rate on your 16-inch MacBook Pro or Apple Pro Display XDR

You can switch between refresh rates on your MacBook Pro (16-inch, 2019) or Pro Display XDR.

For professional workflows such as video editing, you can set the refresh rate of your display to match the frame rate of the video you’re editing or viewing.

Available refresh rates

You can switch between these refresh rates on your Retina display:

• 60 Hertz
• 59.94 Hertz
• 50 Hertz
• 48 Hertz
• 47.95 Hertz

Change the refresh rate

Choose a refresh rate that divides evenly into the frame rate of your content. For example, if the content you’re viewing is 24 frames per second, select the 48 Hertz refresh rate.

1. Choose Apple menu  > System Preferences, then click Displays.
2. Press and hold the Option key and select the Scaled button. The refresh rate menu appears.
   
3. Click the Refresh Rate pop-up menu and choose a refresh rate.

When you’re done viewing or editing the video content, you might want to change your refresh rate back to the default of 60 Hertz to ensure smooth performance in macOS, such as when you minimize a window.

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judas-christ / fix-refresh-rate.sh

# install homebrew

/usr/bin/ruby -e » $( curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install ) «

# install cscreen

brew cask install cscreen

# list displays

cscreen -l

# find your external screen in the list and write the number (not the ID) down somewhere

# in the following instructions, use that number instead of

# list display modes for your external screen

cscreen -s SCREEN > -v

# find a display mode you like and run

cscreen -s SCREEN > -x HEIGHT > -y WIDTH > -r REFRESH_RATE >

# enjoy!

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xriu commented Jun 1, 2019 •

good gist, but you need to fix -x WIDTH -y HEIGHT

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aldajulian commented Mar 17, 2021 •

install cscreen
brew install —cask cscreen

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How to Change Refresh Rate on Mac Displays

Changing the refresh rate of a display can be needed by some Mac users, particularly if they work with movie files and video editing. Generally speaking, most users should keep their displays set to the default refresh rate for their particular screen, but if you need to adjust refresh rate you’ll find it’s simple to do so with displays used on the Mac.

It’s important to note that not all Mac displays can change their fresh rate, though many third party external screens offer different refresh rate options. In fact, most Mac internal screens can not change refresh rates for those built-in displays, though that is changing with some of the Pro models.

How to Change the Refresh Rate on MacBook Pro Display

For the latest MacBook Pro 16″ and newer models, and the Apple Pro XDR display, you can adjust the Mac refresh rate as follows:

1. Pull down the  Apple menu and choose ‘System Preferences’
2. Go to “Displays”
3. Under the ‘Display’ tab, hold down the OPTION key and click on the “Scaled” button to reveal the “Refresh Rate” options

The default option is 60 hertz for most displays, which is recommended to maintain.

For example, the 16″ MacBook Pro has multiple refresh rates available on the built-in display, including 47.95 hertz, 48 hertz, 50 hertz, 59.94 hertz, and 60 hertz.

You can also change the screen resolution of Retina Macs in the same settings menu if you choose to, whether to increase text size and size of stuff on the screen or to get more screen real estate. Much like refresh rate, it’s generally recommended to use the native screen resolution on a display for best results.

How to Change Refresh Rate on External Mac Displays

Some external displays can also change their refresh rate easily, here’s how you can do that:

1. Connect the external display to the Mac if it’s not connected already
2. Pull down the  Apple menu, and choose ‘System Preferences’
3. Go to “Displays”
4. Under the ‘Display’ tab, hold down the OPTION key and click on the “Scaled” button to reveal the “Refresh Rate” options for that display

Some displays may even show the refresh rate drop-down menu options without having to hold down the OPTION key, but that partially depends on the version of MacOS and the display itself too.

Why don’t I see an option to change refresh rate on Mac display?

If you don’t see the option to change refresh rate on the Mac display, it’s either because your display does not support changing refresh rate, or you forgot to hold down the OPTION / ALT key while you were choosing the Scaled resolution button. It’s also possible you are using a cable or dongle that does not support the refresh rate you are hoping to use or see.

If your Mac does not support different refresh rates on the internal display, you’ll see the standard settings screen for Display preferences:

If you know the display should have the option but you are encountering issues, you may try disconnecting it, reconnecting it, and using the Detect Displays trick, which sometimes can resolve curious issues with display resolution, refresh rate, and other unusual display behavior.

As mentioned before, if you do change the refresh rate of a display you’ll likely want to switch it back to the default once you’re finished using the different setting while editing video or for whatever other purpose you adjusted the setting for.

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How to View Display Refresh Rate on Mac

If you’re a Mac user running an external display, you may be interested in knowing what the displays refresh rate is. For whatever reason, refresh rate is hidden from easy view in the places you might think to look, but with a little effort you can show the refresh rate on display connected to a Mac.

Knowing the refresh rate of a display can be helpful for many reasons, particularly if you want to be sure you’re using the displays native refresh rate. Perhaps you connected an external display to a Mac and find the monitor is laggy or choppy, or the cursor moves choppily, and that may be because of refresh rate settings. And of course you can change the refresh rate too, assuming the display and Mac supports it.

How to View Display Refresh Rate on Mac via System Information

You can check the refresh rate easily on displays connected to a Mac by going through the System Information app (called System Profiler on earlier MacOS versions).

1. Hold down the OPTION key then click the  Apple menu
2. Choose “System Information”
3. From the sidebar, choose “Graphics / Displays”
4. Locate the refresh rate information for the active displays used by the Mac

How to See Monitor Refresh Rate via Display Preferences on Mac

You can also see refresh rate for a monitor by going to Display system preferences in macOS. For most Macs, this is the only way to see the refresh rate of the built-in display.

1. Connect the display to the Mac you wish to see refresh rate for, if you haven’t done so already
2. Go to the  Apple menu and choose “System Preferences”
3. Choose “Display”
4. Hold down the OPTION / ALT key, then click on “Scaled” to reveal the Refresh Rate of the current display and resolution

Note that some displays only support certain refresh rates at certain resolutions, and not all Macs support all display resolutions, so while your display may technically support 120hz or 144hz, it doesn’t mean the Mac will.

If you’re expecting a refresh rate that is not shown, you can go ahead and change the refresh rate of displays used by Mac in most situations.

What if I’m not seeing the refresh rate expected for my display / Mac?

There are numerous reasons you may be seeing refresh rates that are not what you expect. Perhaps you have a 4k 60hz display but you can only use 30hz for example, which results in a laggy experience and choppy cursor.

If you’re using a modern Mac with USB-C, you may try using a dedicated USB-C to DisplayPort cable, like this one, or a USB-C to HDMI cable, rather than using a dongle or adapter. Some dongles or adapters do not support 60hz at 4k, and others seem to have issues with driving 60hz or higher refresh rates.

Some Macs do not support driving monitors at high refresh rates. This is particularly true with older Macs running with newer high resolution displays. But this can apply to new Macs as well.

Additionally, some Macs seem to have issues driving certain displays at certain refresh rates. This is a common complaint with some M1 Mac owners, where a 4k 60hz display is only able to use 30hz, or a 144hz display is only able to use 60hz. There are various speculations as to what the problem is, but it may simply be a bug that has yet to be addressed in macOS, or it may be specific to M1 Macs. If you have any added details on this issue, share it in the comments.

Sometimes rebooting the Mac, and then using Detect Displays when connecting the monitor can resolve the issue.

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Question: Q: Refresh rate settings

I got a monitor 20.1″ Samsung SyncMaster 204b, which blinks on and off when using 1600×1200 60Hz resolution.

After extensive search I found information that setting the refresh rate to 56Hz would help, but unfortunately that option is grayed out in OSX 10.4.9. I downloaded SwitchResX program and modified the refresh rate via that and it worked! Now the problem is that the SwitchResX is about $15-20USD and to me it feels kind of silly to pay money for grayed out option that I should be able to use.

How can I enable this option and use OSX regular way to set my monitor refresh rate to 56Hz?

Mac Mini Mac OS X (10.4.9)

Posted on Mar 22, 2007 11:22 PM

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first of all: WELCOME TO THE DISCUSSIONS!

Which exact model of the Mac mini do you have?

Mar 23, 2007 5:12 AM

I have G4, the higher processor speed versio with 64MB video memory. I think this problem is present on all Macs when monitor is not working properly and there is need to reduce the refresh rate from the manufacturer supported one.

The problem is all about OSX 10.4.9 not allowing me to change refresh rate to 56Hz as that is grayed out. The only choice on my 1600×1200 resolution is 60Hz that blinks. With the program mentioned before I was able to actually go and change the refresh rate to 56Hz so the workaround is working, but problem is that I would like to pay $20 for a grayed out option.

Mar 23, 2007 3:46 PM

First of all, I’m pretty sure the Mac Mini G4 never had 64 MB of VRAM.

Just curious, are you using VGA, or DVI? If you’re using VGA, then you might give DVI a try. In such a case, you will no longer need the monitor adapter.

I just got a new Samsung. I’ve been using it with my MacBook and it’s just brilliant.

Mar 24, 2007 1:44 PM

Well, unfortunately mine does not work unless the refresh rate is set to 56Hz. I searched internet quite a lot and it seems that Samsung SyncMaster 204B (or at least some models) does have this problem. I have two of these monitors for my company, as they were cheap and work well with my laptops. Now when I tried both of them on my Mac Mini the problems appeared.

Back to the original question, how can I force my OSX to use 56Hz instead of the manufacturer default setting? The option is grayed out for some reason and with the application mentioned in first post I was able to change that. That application costs money and it feels kind of silly to pay for grayed out refresh rate option.

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