Consider using the new rewritten version of tinyBrightness - phos!

Tiny utility to change monitor brightness via DDC/CI.

Your monitor must support DDC/CI. DDC/CI may also be off, so check monitor settings.

Main features:

• Popup with monitor selector and brightness slider
• Hotkeys
• Supports Windows 7/8/8.1/10
• Fluent design with blur

Download

Download latest release from GitHub or use official package from Chocolatey:

choco install tiny-brightness

Note: if the package on Chocolatey does not contain the latest version try running choco install tiny-brightness --version=<latest.version>.