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Lunar – macOS utility to set brightness and volume on external monitors

lunar.fyi

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Re: Lunar – macOS utility to set brightness and volume on external monitors

#41
post #34

Earlier quoted context omitted.

No, after 100.000th write your monitor is toast because the EEPROM died. Also note that most people change brightness in increments, with each step causing a write.

Is there a way to know how my monitor does this?

I'd like to know this too!

Re: Lunar – macOS utility to set brightness and volume on external monitors

#42
post #17

There is a problem with "cheap" monitors and DDC/CI: some of them use EEPROMs to store brightness settings, and this limits you to about 100,000 writes. Worrying about this is the main reason we don't ship DDC/CI with f.lux. (I know that some more modern monitors use NAND and don't have limitations like this.) Anyone know if these fears are overblown?

You never know if a wear leveling algorithm has been implemented so flash type isn't going to make lifetime determinable. Even without, 100 erases a day will last for 3 years or longer.

I would hope any monitor I buy lasts longer than 3 years.

Re: Lunar – macOS utility to set brightness and volume on external monitors

#43
post #31

Creator of Lunar here. Thank you all for the kind comments and generous donations and many thanks to the OP for posting this! Let me know if you have any questions or quick feedback about Lunar.

Thanks for writing this! When I got an iMac Pro in 2017 with an accompanying LG UltraFine 5K display I was shocked to learn three things: 1) adjusting the brightness on the internal display is easy but on the LG it's a pain in the ass, 2) despite having ambient light sensor hardware the LG does not automatically adjust its brightness like the internal display, and 3) macOS offers no built-in mechanism to sync the brightnesses of these two displays.

Before learning these things I was feeling excited about Apple's re-committing to the Mac around that time, but man these things made it feel like such "commitment" was just surface level - such low-hanging fruit not being handled is a shame. But, this is a rant for another day.

Anyway, I built my own very simple utility to poll the internal display for its brightness and write that same brightness to the LG via DDC, but never had the time/energy to make it more robust for publishing to the web. I have yet to try Lunar but I definitely will; much appreciated.

Re: Lunar – macOS utility to set brightness and volume on external monitors

#44
post #35

How does this compare to a blue light adjuster like the built in macOS one or f.lux [1]? I think they would complement each other. Anyone tried both? (Lunar and f.lux) * [1] https://justgetflux.com/

Lunar should work just fine with f.lux as it only changes the monitor hardware brightness. Color processing from f.lux can still be applied on top of that without any issues.

I've been using Lunar with Night Shift ever since it was released in macOS and they complement each other very well at night.

Re: Lunar – macOS utility to set brightness and volume on external monitors

#45
post #12

This is a great example of why I like the Touch Bar on my Macbook Pro. When it is connected to an external monitor, I tap the brightness icon in the Touch Bar and get two sliders: one to control brightness on my laptop, and one to control brightness on my external monitor. This seems to be a native feature; I did not install anything to do it.

Is this a particular brand of external monitor? Lunar works for me, but my external monitor is not integrated with touchbar!

Mine is an old Apple Thunderbolt 27" external display.

It didn't occur to me that the Touch Bar control might be specific to this display, since the display predates the TouchBar by many years. But maybe it is, since you and other commenters don't seem to see it.

Re: Lunar – macOS utility to set brightness and volume on external monitors

#46
post #40
post #13

Got a MacBook Pro (16-inch, 2019) weeks ago and bought a LG monitor ( https://www.amazon.com/gp/product/B07YGZ7C1K ). The brightness setting bothered me for 2 weeks as neither the Mac OSX nor LG's onscreen control software can set the brightness for the external monitor. The external monitor brightness changes every time I open/close the macbook lid. Thanks to both ddcctl and MonitorControl, I can finally set a fixed…

I have the exact same setup and same issues!! So frustrating.

Have you tried MonitorControl? It solved my problem. I guess Lunar should also work.

Re: Lunar – macOS utility to set brightness and volume on external monitors

#47
post #31

Creator of Lunar here. Thank you all for the kind comments and generous donations and many thanks to the OP for posting this! Let me know if you have any questions or quick feedback about Lunar.

Very nice app! It was very tedious to do it manually on the monitor!

Re: Lunar – macOS utility to set brightness and volume on external monitors

#48
post #14

This is a great example of why I like the Touch Bar on my Macbook Pro. When it is connected to an external monitor, I tap the brightness icon in the Touch Bar and get two sliders: one to control brightness on my laptop, and one to control brightness on my external monitor. This seems to be a native feature; I did not install anything to do it.

But why can't they expose these controls independent of the Touch Bar? I actually find it ridiculous as a 2015 MBP owner that there is no easy native way to do this basic thing unless, apparently, you have a Macbook with a Touch Bar

I agree. There are brightness sliders for each screen in System Preferences, but doing it that way is a pain in the butt for something that I do frequently.

My previous laptop was a 2012 Macbook Air, and I used an Apple Bluetooth keyboard at my desk in part for this reason. The laptop keyboard adjusted the laptop screen brightness, and the BT keyboard adjusted the external screen brightness.

Re: Lunar – macOS utility to set brightness and volume on external monitors

#50
post #31

Creator of Lunar here. Thank you all for the kind comments and generous donations and many thanks to the OP for posting this! Let me know if you have any questions or quick feedback about Lunar.

Thanks for writing this! When I got an iMac Pro in 2017 with an accompanying LG UltraFine 5K display I was shocked to learn three things: 1) adjusting the brightness on the internal display is easy but on the LG it's a pain in the ass, 2) despite having ambient light sensor hardware the LG does not automatically adjust its brightness like the internal display, and 3) macOS offers no built-in mechanism to sync the bri…

> adjusting the brightness on the internal display is easy but on the LG it's a pain in the ass

Can you elaborate on why you think that is? I’ve owned that monitor, and it seemed equally easy on both.

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