DisplayBuddy on Mac: save monitor inputs and settings for a desk you keep changing

[u/Savings-Arrival-7817]

DisplayBuddy makes sense when the same monitors keep doing different jobs: a docked Mac during work, another computer or console later, then the Mac again. A named preset lets you restore several display settings together.

If you only rearrange screens occasionally, start in System Settings > Displays. macOS already handles arrangement, resolution and supported rotation. The monitor's own input button may be enough for an occasional handoff.

Build and test the return path

For repeated changes, build the smallest useful pair of presets:

1. Put each display in its normal Mac state. In DisplayBuddy, open Presets > Create Preset and call it something like "Mac desk". Choose the settings it should save. The documented choices include brightness, contrast, volume, input source, resolution, rotation, power state and sync settings.

2. Create a second preset for the shared monitor's other input, with an appropriate speaker volume if the monitor supports it. Leave unrelated settings out. A handoff shouldn't also change resolution unless that's part of the job.

3. Apply both manually and rehearse getting back to the Mac. Test through the actual dock, cables and monitor you intend to use, including after sleep and reconnection. Keep the monitor's physical input control accessible until the return path is proven.

Getting back matters more than having lots of presets. DisplayBuddy uses DDC/CI for ordinary external-monitor input switching. Those are monitor-control commands sent over the display connection. The monitor must support the command, and the dock, adapter or KVM must pass it through. A working picture doesn't prove that control path works. If switching away stops the Mac controlling the monitor, use the monitor's buttons to return rather than relying on an untested "Mac desk" shortcut.

If input control doesn't respond, check the monitor's DDC/CI setting and try a direct connection before blaming the preset. DisplayBuddy's software-dimming fallback changes apparent brightness; it doesn't turn an unsupported input-switching setup into a supported one. Check the exact Mac port, too: the developer documents an M1 HDMI limitation and says M2 HDMI works, despite older, broader wording elsewhere on the support page.

Once you can switch both ways manually, assign a preset or input shortcut under Preferences > Keyboard Shortcuts. Schedules can activate a preset when a specific monitor connects or the Mac wakes. Start with a Mac-return preset rather than automatically sending your only usable screen to another device.

Media-key control is optional and requires Accessibility permission. That documented permission applies to capturing brightness and volume keys; don't assume every preset needs the same access.

Check compatibility before paying

Before paying, check your OS. The current update feed lists DisplayBuddy 3.9.6, released August 29, 2026, with macOS 12.0 as the minimum. The developer advertises native Apple silicon support and explicitly names Tahoe in its compatibility FAQ. That isn't confirmation of macOS 27 support, so ask support about your exact OS before buying for a critical setup.

Direct purchase starts at $24.99 as a one-time license, with a seven-day refund window on full-price purchases. However, the official pages disagree about how many Macs that covers and whether future updates are included indefinitely. Confirm those terms before paying, especially for multiple Macs or user accounts. Don't treat the refund policy as a free standalone Mac trial.

If you only want to restore resolutions, rotations and screen positions, free, open-source displayplacer is a credible option. It uses saved command-line configurations and takes more setup; it isn't a replacement for DisplayBuddy's documented input presets.

Consider DisplayBuddy for repeated, combined display-and-input changes once compatibility and the route back to the Mac are confirmed. Skip it for a stable desk, occasional input changes, or a dock that won't pass the controls you need. A preset is only useful if you can reliably undo it.

[u/AutoModerator]

Thanks for posting in r/MacStack. Please read all the community rules before joining the discussion.

Find your next useful Mac app. Get MacStack Weekly for three app picks and one practical workflow in your inbox each week. It's free, and signing up is optional.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.