ddccontrol VS twinkle-tray

Why do they not allow doing the same for external monitors using DDC? There are several apps that do just that.

Try ddccontrol on Linux or https://www.nirsoft.net/utils/control_my_monitor.html on Windows.

ddccontrol and gddcontrol works well

If I were you, I would take a look at ddccontrol. It's a utility that allows you to query the state and send commands to your monitor via the command line. I currently use it to increase / decrease the brightness of my monitor depending on the time of day.

i have always hated having to fiddle with the buttons on the back of my monitor to change things such as the brightness but now i have finally found a better way https://github.com/ddccontrol/ddccontrol

Before I look into automating it, I wanted to get it working first. For this, I have a tool called ddccontrol (https://github.com/ddccontrol/ddccontrol). But this needs root privileges. So I'm just wondering if there are other ways, since I couldn't find any.

Monitorian requires a subscription for hotkeys and CLI, unfortunately.

Twinkle Tray is an alternative: https://github.com/xanderfrangos/twinkle-tray

For example with Twinkle-tray

I found https://github.com/emoacht/Monitorian https://github.com/xanderfrangos/twinkle-tray, but they can't change other settings (color in this case) like gddccontrol in Xubuntu.

Also use brightness adjustment like twinkle.

I achieved this with SWICD and Twinkle Tray.

Easy way to hot-key brightness levels to a keypress, download TWINKLETRAY https://github.com/xanderfrangos/twinkle-tray You can then map brightness up/down using SWICD or JoyXOff to a button press/combination and set % step (i.e. 1%, 5%, 10% etc.)