Comment by Adverblessly

> Alas, I'm using Gnome.

That is unfortunate, but at least that's not a difficult problem to fix ;)

On Wayland at least input stuff is IIUC solely on the compositor, so if they don't want you to control scroll speed, you won't.

For power, maybe the instructions on the Arch Wiki can help? https://wiki.archlinux.org/title/Power_management/Suspend_an...

> it doesn't look like amdgpu supports my hardware (Richland chipset)

I see, looks like your card is too old for the official open source amdgpu support, meaning you should either install the unofficial open source ati drivers as per https://wiki.archlinux.org/title/ATI or try the official proprietary drivers from AMD (which I assume will be too outdated to function on a modern kernel?).