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Re:HDMI Firewall by alanbernstein on Tuesday June 21, 2022 @05:55PM (#31829539)
Looks like lunar.fyi is just for Mac, right? Any idea about an equivalent on Linux? I want to add an input switch shortcut on my keyboard, but I want it to work on both machines.
Re:HDMI Firewall by alin23 on Tuesday June 21, 2022 @06:04PM (#31829622)
ddcutil is the standard utility on Linux for that. It is just command line but it’s highly compatible and very easy to use: https://www.ddcutil.com/

I even use it for the network-based DDC in Lunar through a Raspberry Pi when wire-DDC from the Mac is not available: https://alinpanaitiu.com/blog/journey-to-ddc-on-m1-macs/#the...

Re:HDMI Firewall by happyhardcore on Wednesday June 22, 2022 @05:41AM (#31833770)
This just solved a problem I have that I never knew there was a solution for! It seems really weird to me that every OS doesn't have a native solution for changing external monitor brightness; I thought it was down to the monitor but clearly it isn't. Thanks for the link and thanks for your work on Lunar!
Re:HDMI Firewall by alin23 on Wednesday June 22, 2022 @05:49AM (#31833818)
I’m happy you find it useful!

Well it kinda is up to the monitor. Given how many monitors don’t implement the DDC/CI standard correctly and flash and crash and blackout on simple brightness change commands, it would turn into a PR nightmare at the scale of an operating system.

I’m overwhelmed by the daily support I have to provide for Lunar users and I barely have 20k users. I can’t even imagine how bad it would be if 100k users started having their monitor crash or lose color on “such a simple thing as changing brightness”.