this post was submitted on 17 Oct 2024
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Hello! I am on Fedora 40 KDE Edition (Wayland). I have monitor with two supported refresh rates (60, 50 Hz). How can I set custom refresh rate? I know, on Windows you can use CRU.

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[–] user_naa@lemmy.world 1 points 17 hours ago (2 children)

In this guide author dumped edid from disaplay and then loaded it without any modifications. So after reloading edid you can choose any resolution? Or I understood something wrong?

[–] SteveTech@programming.dev 4 points 16 hours ago

I think you'd have to modify the edid, since you're setting a custom refresh rate, not a hidden one.

I've use wxEDID to force enable VRR before.

[–] vikingtons@lemmy.world 1 points 17 hours ago* (last edited 17 hours ago)

Archwiki references a [@<refresh>] (presumably denoted as [@144] for something like 144Hz) property, hopefully that's all you should need to define, though I'm not sure if you'll need to manually recalculate vertical and horz timings or something.

Maybe this can help fill in any gaps

https://tomverbeure.github.io/video_timings_calculator