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

Re:Lunar – macOS utility to set brightness and volume on ext... by inspector-g on Tuesday September 01, 2020 @02:49PM (#24345368)

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.

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Re:Lunar – macOS utility to set brightness and volume on ext... by dmitshur on Tuesday September 01, 2020 @02:59PM (#24345528)

> 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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