https://bugs.kde.org/show_bug.cgi?id=477016

--- Comment #29 from AdamKafei <ian....@hotmail.co.uk> ---
> I would like to do that, but it's a bit more challenging than it seems. We
> don't actually set any refresh rate with VRR, we just push frames to the
> kernel, and it makes the screen follow the rate of those frames. If we start
> constantly pushing frames to keep the screen at full refresh rate, the
> kernel will also keep the GPU fully enabled, wasting lots of power.
> 
> Maybe we could start doing it on external displays only, because it
> shouldn't be much of a problem on desktop PCs... but we really need actual
> driver APIs for doing this stuff properly.

This is interesting and I admit I'd never have thought of that, how is it
handled in VRR off mode? And is there any way to perhaps use that code/method
without actually turning off the VRR to achieve a 'resting' frame rate?

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