How do I schedule a change of Display Preset on my MacBook (2024 Pro 14") running Tahoe?

neatlyfolded wrote:

How do I schedule a change of Display Preset on my MacBook (2024 Pro 14") running Tahoe?

Trying to limit 'blue light', reduce sleep disruptions, etc. I use "Design & Print (P3-D50)" display preset during day. If I get back on machine in the evening, and I remember to do it, I switch built-in display to "Apple Display" preset. In addition to adding luminance control, this change enables Night Shift. (My primary preset allows neither.)

FWIW: I have an iOS reminder for preset switch. But that only works if I'm at or near desk when alarm activates. Automation is needed for instances when I come back to machine, hours later, after alarm is long forgotten.

Also: Mac OS User Manual and misc Support searches have yielded nothing helpful. I've tried hunting Terminal command sequences... then existing Shortcuts... then creating a Shortcut. Closest I got was a scheduled prompt to open MacBook display settings. I couldn't figure out how to force desired preset.

External resources (forum post w/ script template) greatly appreciated. Shortcut how-tos, not as much. :)

Many thanks.

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Why not just shut down at night. The solid state Macs today don't take long to boot up and shutting down at night will clear out the temporary System and application cache and swap files. They can get damaged/corrupted and if they do can cause serious degradation of performance.

Shutting down at night clears out those files and creates new, unblemished files the then time the system or apps are launched.

OldToad wrote:

Why not just shut down at night.

Followed your suggestion over the past week. Excellent advice. Thank you, Old Toad.

Embarrassed that this solution did not occur to me. But I'm enjoying the results, regardless.

(Note to topic browsers: Logging in, after watching screen light up, is the engagement that my brain needed. Display adjustment is now a part of *my* startup process. It's s simple approach to my core objective -- ie, reducing 'blue light' in evening -- compared to modifying Mac system behavior. Sounds like it avoids pitfalls that I wasn't aware of, also.)

Thanks again, OT.

neatlyfolded wrote:

OldToad wrote:

Why not just shut down at night.

Followed your suggestion over the past week. Excellent advice. Thank you, Old Toad.

Embarrassed that this solution did not occur to me. But I'm enjoying the results, regardless.

(Note to topic browsers: Logging in, after watching screen light up, is the engagement that my brain needed. Display adjustment is now a part of *my* startup process. It's s simple approach to my core objective -- ie, reducing 'blue light' in evening -- compared to modifying Mac system behavior. Sounds like it avoids pitfalls that I wasn't aware of, also.)

Thanks again, OT.

You're welcome. Glad it's working for you. 👍

Understood.

Thank you, Leroy.