Monitors that you can control the brightness from Mac?

[Qwerty11]

Are there any monitors, besides Apple made, that allow you to control the brightness of the display from the computer verses having to physically push buttons on the monitor?

 

[enricoclaudio]

Only Apple displays and LGs Ultrafine 4K/5K.

 

[Qwerty11]

What about that have a light sensor that can adjust the brightness?

 

[DrCC]

Only Apple displays and LGs Ultrafine 4K/5K.

I have a generic LG 27UL650-W and I can control the brightness with the app called Monitor Control (free).
Even the keyboard keys work for the external monitor if that monitor is selected.

Supported displays​

• Most modern LCD displays from all major manufacturers supported implemented DDC/CI protocol via DisplayPort, HDMI, USB-C or VGA to allow for hardware backlight control.
• Apple (and LG-Apple) displays and built-in displays are supported using native protocol.
• LCD and LED Televisions usually do not implement DDC, these are supported using software alternatives to dim the image (some higher-end sets are able to translate this into hardware backlight dimming).
• OLED or mini/micro-LED displays and televisions are fully supported using gamma table manipulation (this is a no-compromise solution for this class of displays).
• DisplayLink, Airplay and Sidecar are supported using shade (dark overlay) control.
• The app is compatible with BetterDummy mirrored sets.

Notable exceptions for hardware control compatibility:

• Some displays (notably EIZO) use MCCS over USB or an entirely custom protocol for control. These displays are supported with software dimming only.
• The HDMI port of the 2018 Intel Mac mini and 2020 M1 Mac mini prohibit DDC communication. Software control is still available. We recommend connecting the display via the USB-C port (USB-C to HDMI dongles usually work).
• DisplayLink docks and dongles do not allow for DDC control on Macs, only software dimming is available for these connections.

Note to f.lux users - please activate Avoid gamma table manipulation under Preferences » Displays! This step is not needed if you use Night Shift.

 

[Qwerty11]

I have a generic LG 27UL650-W and I can control the brightness with the app called Monitor Control (free).
Even the keyboard keys work for the external monitor if that monitor is selected.

Supported displays​

• Most modern LCD displays from all major manufacturers supported implemented DDC/CI protocol via DisplayPort, HDMI, USB-C or VGA to allow for hardware backlight control.
• Apple (and LG-Apple) displays and built-in displays are supported using native protocol.
• LCD and LED Televisions usually do not implement DDC, these are supported using software alternatives to dim the image (some higher-end sets are able to translate this into hardware backlight dimming).
• OLED or mini/micro-LED displays and televisions are fully supported using gamma table manipulation (this is a no-compromise solution for this class of displays).
• DisplayLink, Airplay and Sidecar are supported using shade (dark overlay) control.
• The app is compatible with BetterDummy mirrored sets.

Notable exceptions for hardware control compatibility:

• Some displays (notably EIZO) use MCCS over USB or an entirely custom protocol for control. These displays are supported with software dimming only.
• The HDMI port of the 2018 Intel Mac mini and 2020 M1 Mac mini prohibit DDC communication. Software control is still available. We recommend connecting the display via the USB-C port (USB-C to HDMI dongles usually work).
• DisplayLink docks and dongles do not allow for DDC control on Macs, only software dimming is available for these connections.

Note to f.lux users - please activate Avoid gamma table manipulation under Preferences » Displays! This step is not needed if you use Night Shift.

Huge thanks! This is exactly what I was looking for.

 

[DrCC]

I don't know if it is the Monitor Control doing it, but when you have the laptop open with True Tone activated, it also controls the tone of the External monitor. Obviously it doesn't work in clam shell mode.