I recently made the switch from Debian to SparkyLinux and I'm using the Enlightenment desktop. I noticed that I cannot change the backlight with either the hotkeys on my computer or the backlight slider module (although pressing the hotkeys will make the module change, it does not control the actual backlight). I eventually found a fix by going to settings > input > key bindings and deleting the brightness adjustment keybindings, then going to settings > input > ACPI bindings and deleting the brightness up/down bindings, then installing xfce4-power-manager and using that to get the hotkeys to work. I am wondering if perhaps there might be a way to get the brightness controls to work with the native Enlightenment applications. Before I figured out I could use the xfce power manager, I tried messing around with the ACPI bindings and found out that the action parameters don't save even after hitting apply, so I'm wondering if it's a problem with the ACPI.
Thanks for any help,