It used to work fine, however, recently, (and I’m not sure what changed), transparency hasn’t been working at all from when I first log in and KDE starts. The most annoying part of this is that I use Terminology as my terminal application of choice, and it doesn’t display any borders at all without transparency for some reason.
If I pull up the compositor settings and change the “Rendering backend” from OpenGL 3.1 to OpenGL 2.0 and back again to 3.1, transparency works fine again until I reboot or just log out.
I’ve got an nVidia card with propriety driver version 440.1, if that matter at all.
Does anybody have any idea on what might be causing this, and what further information do you need from me, if any?