I see a lot of questions on the internet on “how do I control monitor brightness on macOS?” and a lot of “just use Control+Brightness Up/Down” answers from people not realizing that only Apple vendored monitors support that.
And that’s only possible because Apple implements a proprietary USB protocol inside their monitors for changing brightness so they have smooth transitions and be sure it works every time.
I’m pretty sure they’ll never touch DDC/CI for that, and rightfully so as it has very spotty support, especially with these new Thunderbolt hubs/adapters and smart monitors.
I’m glad Lunar works for you!
This was documented here: https://medium.com/@parttimeben/mac-it-just-works-horribly-c...
I personally blame Apple for not supporting CEC. I have over 19 apps running in the background to “fix” macOS.
I'm not an Apple fan, but I've tried to use CEC a bunch of times, and I can't blame them for not supporting it. It's not a good protocol.
I don't know the protocol, but when it works it's really great as a end user.
People end up using third party apps to do this anyway. That's actually less secure than if Apple did it.
Re:HDMI Firewall
by TaylorAlexander on Tuesday June 21, 2022 @07:31PM
(#31830337)
Brightness adjustment from desktop is great! For anyone else on Ubuntu I use this gnome plugin:
https://extensions.gnome.org/extension/2645/brightness-contr...
Adding to this: My Dell Ultrasharp U4320Q (an excellent productivity monitor IMO) works well with Lunar on my M1 Macbook Pro.
Edit: The monitor is connected via USB-C. Haven't tried with using my Macs HDMI port.
https://www.dell.com/en-nz/shop/dell-ultrasharp-43-4k-usb-c-...
However, I have non-Apple displays as well. Just tried https://lunar.fyi/ via usbc and it worked great so far!