Is it possible to change display resolution with a keyboard shortcut?

Question

I use different screen resolutions based on the activity I'm doing during the day.
For example when I'm coding I prefer to have more space available.
Is it possible to associate a keyboard shortcut to change the scaled display resolution ?
(see the attached screenshot)

Answer 1

Yes you totally can achieve this without running additional apps. On my system I created two different scripts. One script for adjusting the display resolution higher and one adjusting display resolution lower. On my system I just enabled both scripts as dictation commands but if you create a new Service through Automator, you can assign keyboard shortcuts to those services..

First, here are the two scripts I started with.

This one is for making the display resolution higher: if my display resolution is already at the default position

tell application "System Preferences"
    reveal anchor "displaysDisplayTab" of pane "com.apple.preference.displays"
end tell
tell application "System Events" to tell process "System Preferences" to tell window "Built-in Retina Display"
    click radio button "Scaled" of radio group 1 of tab group 1
    click radio button 4 of radio group 1 of group 1 of tab group 1
end tell
quit application "System Preferences"

Running that script will result in this:

This next script is for making the display resolution lower: if my display resolution is not set at the default setting

tell application "System Preferences"
    reveal anchor "displaysDisplayTab" of pane "com.apple.preference.displays"
end tell
tell application "System Events" to tell process "System Preferences" to tell window "Built-in Retina Display"
    click radio button "Scaled" of radio group 1 of tab group 1
    click radio button 3 of radio group 1 of group 1 of tab group 1
end tell
quit application "System Preferences"

Once I made sure both scripts work correctly, I then opened up Automator and created a new service for the display resolution higher and added the appropriate script as shown in the following image. I saved this file as rez_higher.workflow

From here, I opened up system preferences/keyboard/shortcuts/services. I located that new service I created and assigned it a keyboard shortcut

After this, just follow the same procedures to create a new workflow and service for the display resolution lower

---

UPDATE: On OS Ventura, System Preferences.app is now System Settings.app so all of the code above will not work. However, this following AppleScript code will work.

try
    if application "System Settings" is running then ¬
        do shell script "killall 'System Settings'"
end try

repeat until application "System Settings" is not running
    delay 0.1
end repeat

tell application "System Settings"
    reveal anchor "resolutionSection" of ¬
        pane id "com.apple.Displays-Settings.extension"
end tell

tell application "System Events" to tell process "System Settings"
    repeat until exists of table 1 of scroll area 1 of group 1 of scroll area 2 ¬
        of group 1 of group 2 of splitter group 1 of group 1 of window "Displays"
        delay 0.1
    end repeat
    
    -- row 3 on my MBP is 1440 x 900
    set selected of row 3 of table 1 of scroll area 1 of group 1 of scroll area 2 ¬
        of group 1 of group 2 of splitter group 1 of group 1 of window ¬
        "Displays" to true
end tell

tell application "System Settings" to quit

Answer 2

I wrote the free command line tool displayplacer to change resolutions/rotations for single or multi-monitor desktops. You can trigger a "profile" (example below) via a keyboard shortcut with Automator like wch1zpink explained, BetterTouchTool, etc.

displayplacer 'id:69731906 res:1440x900 scaling:on origin:(0,0) degree:0'

Answer 3

Proposed Fix for Zade's change for the Browser UI System Preferences in 13.0.1, the Shortcut didn't work anymore for me in Ventura 13.2 because of an error around the value of attribute "AXAttributedDescription" part

What I use in Ventura 13.2 now:

do shell script "open x-apple.systempreferences:com.apple.preference.displays"
tell application "System Events"
    tell application process "System Settings"
        repeat until (exists UI element 1 of group 1 of scroll area 2 of group 1 of group 2 of splitter group 1 of group 1 of window 1)
            delay 0.1
        end repeat
        tell window 1 #"Displays"
            set displayOptions to UI element 1 of group 1 of scroll area 2 of group 1 of group 2 of splitter group 1 of group 1
            set StandardRes to button 4 of displayOptions
            set MoreSpaceRes to button 5 of displayOptions
            
            if focused of StandardRes is false then
                click StandardRes
            else
                click MoreSpaceRes
            end if
        end tell
    end tell
end tell
quit application "System Settings"

This switches between the Standard resolution and the "More Space" one ("Mehr Fläche" in German) and should be system language independent.

---

Fix for wch1zpink's answer on macOS 13.0.1, thanks to the UI Browser app:

do shell script "open x-apple.systempreferences:com.apple.preference.displays"
tell application "System Events"
    tell application process "System Settings"
        repeat until (exists UI element 1 of group 1 of scroll area 2 of group 1 of group 2 of splitter group 1 of group 1 of window "Displays")
            delay 0.1
        end repeat
        tell window "Displays"
            set displayOptions to UI element 1 of group 1 of scroll area 2 of group 1 of group 2 of splitter group 1 of group 1
            set theButton to (first button of displayOptions whose value of attribute "AXAttributedDescription" contains "Selected")
            if help of theButton is "2560 × 1440" then
                click button 1 of displayOptions
            else
                click button 3 of displayOptions
            end if
        end tell
    end tell
end tell
quit application "System Settings"

---

Fix on macOS 12.0.1:

tell application "System Preferences"
    reveal anchor "displaysDisplayTab" of pane "com.apple.preference.displays"
end tell
tell application "System Events"
    tell application process "System Preferences"
        repeat until (exists radio button "Scaled" of radio group 1 of group 1 of window "Displays")
            delay 0.1
        end repeat
        tell window "Displays"
            set isScaled to value of radio button "Scaled" of radio group 1 of group 1
            if isScaled = 0 then
                click radio button "Scaled" of radio group 1 of group 1
                click button 1 of UI element 3 of group 1
            else
                click radio button "Default for display" of radio group 1 of group 1
            end if
        end tell
    end tell
end tell
quit application "System Preferences"

---

Fix on macOS 10.15.4:

tell application "System Preferences"
    reveal anchor "displaysDisplayTab" of pane "com.apple.preference.displays"
end tell
tell application "System Events" to tell process "System Preferences" to tell window "Built-in Retina Display"
    set isScaled to value of radio button "Scaled" of tab group 1
    if isScaled = 0 then
        click radio button "Scaled" of tab group 1
        click radio button 1 of radio group 1 of group 1 of tab group 1
    else
        click radio button "Default for display" of tab group 1
    end if
end tell
quit application "System Preferences"

Answer 4

What works for me in 2022 on macOS 12.1 on MacBook Pro

To have a single keyboard shortcut that toggles between 2 resolutions:

1. Automator > File > New > Quick Action > Choose
2. Search for "Run AppleScript" and double-click the result.
3. Replace the default script code with what I provide below.
4. Try clicking the Run button a couple times to see if the toggling works.
5. Save as "toggle_display_resolution". (Later, if you ever want to edit it, you'll open /Users/your_username/Library/Services/toggle_display_resolution.workflow in Automator).
6. Close Automator.
7. System Preferences > Keyboard > Shortcuts > Services
8. Assign a keyboard shortcut to the new service that you created (which will probably be at the bottom of the list).

By the way, you may need to edit your "Security & Privacy" > Accessibility. See answer.

on run {input, parameters}
    
    # https://apple.stackexchange.com/a/436069/53510
    tell application "System Preferences"
        reveal anchor "displaysDisplayTab" of pane "com.apple.preference.displays"
    end tell
    tell application "System Events"
        tell application process "System Preferences"
            repeat until (exists radio button "Scaled" of radio group 1 of group 1 of window "Displays")
                delay 0.1
            end repeat
            tell window "Displays"
                set isScaled to value of radio button "Scaled" of radio group 1 of group 1
                if isScaled = 0 then
                    click radio button "Scaled" of radio group 1 of group 1
                    # button '5' means highest resolution (smalled font):
                    click button 5 of UI element 3 of group 1
                else
                    click radio button "Default for display" of radio group 1 of group 1
                end if
            end tell
        end tell
    end tell
    # The next line is optional and could be commented out by prepending with a hash (#).
    quit application "System Preferences"
    
    return input
end run

P.S. Many thanks to wch1zpink and Zade, whose answers led to mine. Upvote theirs too.

P.P.S. I'm curious to learn whether I could more easily share this Quick Action / Service.

Answer 5

Oct 2022 macOS 12.6 Solution

Adding another solution to the list. Imron Gamidli's solution got me the closest to what I wanted with the toggle behavior.

Here is my script which I've added as a Raycast command so that I can trigger from raycast or assign a keyboard shortcut.

#!/usr/bin/osascript

# Required parameters:
# @raycast.schemaVersion 1
# @raycast.title Toggle Resolution
# @raycast.mode silent

# Optional parameters:
# @raycast.icon 🤖

set monitor to 2
tell application "System Preferences"
    activate
    set the current pane to pane id "com.apple.preference.displays"
    delay 2
    tell application "System Events"
        tell window "Displays" of application process "System Preferences"
            click button "Display Settings…"
            delay 2
            click row monitor of outline 1 of scroll area 1 of sheet 1
            click radio button "Scaled" of radio group 1 of sheet 1
            try
                set selected_button to button "Resolution5, Selected" of UI element 6 of sheet 1
                click button "Resolution1" of UI element 6 of sheet 1
            on error
                click button "Resolution5" of UI element 6 of sheet 1
            end try
            delay 0.5
            click button "Done" of sheet 1
        end tell
    end tell
end tell
# The next line is optional and could be commented out by prepending with a hash (#).
delay 2
quit application "System Preferences"

Answer 6

As of macOS 12.2.1 with the introduction of Shortcuts, you no longer need a keyboard shortcut anymore. Anyway, many thanks to Ryan who provided the basis of my code. Here it goes:

    on run {input, parameters}
        
        # https://apple.stackexchange.com/a/436069/53510
        tell application "System Preferences"
            activate
            reveal anchor "displaysDisplayTab" of pane "com.apple.preference.displays"
            delay 2 #Make longer if needed
            tell application "System Events"
                tell application process "System Preferences"
                    tell window 1
                        click button 1 #Monitor settings
                        delay 0.7 #Make longer if needed
                        select row 2 of outline 1 of scroll area 1 of sheet 1 #Row=monitor number
                        click radio button 2 of radio group 1 of sheet 1 #Select "Scaled"
                        click button 2 of UI element 6 of sheet 1 #Select resolution
                        click button 2 of sheet 1 #Done
                        click button 4 #Close System Preferences
                    end tell
                end tell
            end tell
        end tell
        return input
    end run

Delays are needed because of window opening time, otherwise the indexing breaks. If it still breaks, just extend the delays. For the row number, if you want to influence your e.g. 3rd monitor, write "row 3" instead. If you're making a second one to increase your resolution and scaled is thus already selected, you can get rid of that line.

EDIT: for MacOS 12.3, change button 4 to button 5

Answer 7

This worked for me on Monterey 12.3.1 to change resolution on my 2nd monitor from the list. I will transfer this script to automator to change resolution with keyboard

set res to 3
set monitor to 2
tell application "System Preferences"
    activate
    set the current pane to pane id "com.apple.preference.displays"
    delay 2
    tell application "System Events"
        tell window "Displays" of application process "System Preferences"
            click button "Display Settings…"
            delay 2
            click row monitor of outline 1 of scroll area 1 of sheet 1
            click radio button "Scaled" of radio group 1 of sheet 1
            click button res of UI element 6 of sheet 1
        end tell
    end tell
end tell

Answer 8

You can use this app called SwitcherResX (http://www.madrau.com/srx_download/download.html) where they have option to change resolution with Keyboard shortcut or based on application you use. They have a trial to try.

Answer 9

The application EasyRes (free in the Apple app store) did it for me. I had spent an hour resetting the NVRAM, trying frantically to get my 2006-vintage 30" Apple Cinema display back to full resolution, to no avail. I must have rebooted 25 times. EasyRes took care of it. Thank you EasyRes, I was going nuts!

Update: this is not "sticky" -- when I reboot, I'm back to 1280x800 and I have to use EasyRes again, but I reboot only ever couple of months, so this is workable.

Answer 10

Anyone have an AppleScript for Ventura? Tried to use Keyboard Maestro and somehow can't get this going. Have a few apps that don't have font resize as an option and I'd love a quick way to do this and set it back to default fast.

Answer 11

Note @wch1zpink's answer works great, but Big Sur makes some breaking changes to it and requires revisions. This worked for me with an external display so just replace LG ULTRAWIDE with the title on the window.

compress-screen

on run {input, parameters}
    
    activate application "System Preferences"
    tell application "System Events"
        tell process "System Preferences"
            click button "Displays" of scroll area 1 of window "System Preferences"
            delay 0.5
            
            tell tab group 1 of window "LG ULTRAWIDE"
                click radio button "Scaled"
                delay 0.5
                select row 4 of table 1 of scroll area 1
            end tell
        end tell
        delay 1
        quit application "System Preferences"
    end tell
    
    return input
end run

expand-screen

on run {input, parameters}
    
    activate application "System Preferences"
    tell application "System Events"
        tell process "System Preferences"
            click button "Displays" of scroll area 1 of window "System Preferences"
            delay 0.5
            
            tell tab group 1 of window "LG ULTRAWIDE"
                click radio button "Default for Display"
            end tell
        end tell
        delay 0.5
        quit application "System Preferences"
    end tell
    
    return input
end run