Twinkle Tray enables brightness control on external displays in Windows 10 & 11. Even th Windows is capable of adjusting the backlight on most monitors, it doesn't support external monitors natively.

ddcui is described as 'Graphical user interface implemented using Qt for ddcutil - control monitor settings' and is an app. There are eight alternatives to ddcui for a variety of platforms, including Windows, Linux, openSUSE, Fedora and Ubuntu apps. The best ddcui alternative is Twinkle Tray, which is both free and Open Source. Other great apps like ddcui are DDCcontrol, luminance, BrightnessControl and ddcutil.
Twinkle Tray enables brightness control on external displays in Windows 10 & 11. Even th Windows is capable of adjusting the backlight on most monitors, it doesn't support external monitors natively.

DDCcontrol is software for controlling monitor parameters such as brightness, contrast, and RGB color levels. It includes a command-line tool and a GUI tool.
The app lets you control the brightness of all your screens (both laptop and desktop) by a single click on a tray icon. Its look goes nicely with the system icons and it supports both light and dark mode.


Most monitors, other than laptop displays, have a Virtual Control Panel (VCP), which implements features defined in the Montor Control Command Set (MCCS). Typically, ddcutil communicates with the monitor's VCP over an I2C bus, as per the Display Data Channel/Command...
Windows implementation of the ddcutil Linux program for querying and changing monitor settings, such as brightness and color levels.
Tired of having to adjust your settings whenever you move your displays? Maybe you like to use your laptop on a stand and on your desk? This app is for you!




Dell Display Manager enhances everyday productivity through comprehensive management tools giving you optimal front of screen experience, efficient display management and easy, effortless multitasking.

