what controls DPMS in KDE?

[Fulko Hew]

Somewhat off topic, but:

I'm trying to build a stripped down F11/KDE system
I've eliminated most of the packages that I don't need, but I've encountered
a problem.

DPMS is _still_ on by default and hence is blanking my screen after ~20
minutes.

My question is:

What entry in what file do I need to adjust (that the KDE tool does) to turn
off DPMS?

TIA
Fulko
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