Is there a brightness-control panel applet for xfce4 that uses the DDC protocol to control an external monitor (i.e., similar to the brightness-control applet in Budgie, which also seems to adjust the color temperature on a second slider)?
I’m using a desktop (not laptop) with an external LED (not LCD) monitor, so the Power Manager applet does not work for this purpose.
Edit: brightness-controller-git works for me, and adds itself to the panel when run. I just need to change its icon so I can see it against the dark panel.
Thank you, sir. Problem-solving might be one of my inherent traits. Of course I feel a little silly for asking a question and then finding my own good-enough answer a little while after. But maybe that will save someone else some time.
I have an LG external LED monitor, and on Windows I used LG’s OnScreenControl app to adjust brightness, primarily to boost the brightness for watching movies and turn it back down for regular use. The brightness-control-git works at least as well as that, and can also adjust the color temperature (I don’t remember whether LG’s OSC app can do that).
At the moment I’m on a temp install, because I’m expecting a new hard drive tomorrow. I might go back to Budgie for my DE, but I also like xfce4 a lot.
You might want to try a small tool I wrote for this exact use case: an XFCE panel plugin that controls external monitors over DDC/CI.
It adds a brightness slider directly to the xfce4 panel and works well with external displays (no laptop backlight required). It’s lightweight and focused specifically on DDC control rather than general power management.
Thank you for pointing that out. I’ve checked the repository and fixed the typo in the cd command. I also added a dedicated Arch Linux installation section with the correct package names and instructions.
It should work properly on EndeavourOS/Arch now. Let me know if you run into any other issues.
Of course I feel a little silly for asking a question and then finding my own good-enough answer a little while after. But maybe that will save someone else some time.