this post was submitted on 16 Jul 2023
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I believe the value used when running
brightness [value]
is a percentage of your monitors total brightness. e.g. If one monitor can reach 400/nits and another 900/nits, thenbrightness 50
would set it to 200/nits and 450/nits respectively.DDCUtil which is what this is based on unfortunately doesn't support laptops.
The program effectively changes the brightness via the monitors on screen display.