drm_set_preferred_mode(9)

📦 version 7.3.1, in nixpkgs unstable

💖 drm_set_preferred_mode(9) 💖

okay bestie so we're in the Kernel API Manual today and this one is short but honestly iconic — it's the little function that picks a favorite child among your display modes 🎀

✨ NAME ✨

drm_set_preferred_mode — sets the preferred mode of a connector 💅

🌸 SYNOPSIS 🌸

void drm_set_preferred_mode (struct drm_connector *connector , int hpref , int vpref );

🦋 ARGUMENTS 🦋

  • connector — the connector whose mode list should be processed 🫶 like, this is the one getting the glow-up
  • hpref — horizontal resolution of the preferred mode (yes, the width, the horizontal vibe ✨)
  • vpref — vertical resolution of the preferred mode (the height, the vertical vibe 💜)

👑 DESCRIPTION 👑

So here's the tea ☕: this function goes through stuff and marks a mode as preferred if it matches the resolution you specified with hpref and vpref. That's it. That's the whole plot. Short and slay 🔥

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/drm_modes.c — that's where the magic lives, iykyk 🧚

and the whole friend group of related functions, all here, all accounted for, no cap:

and that's the whole page, bestie — go set some preferred modes, you absolute main character 💅✨

sign-off szn 🎀 this one shipped from ./drivers/gpu/drm, dated October 2026, and it's the drm_set_preferred_mode(9) page, mwah 💖

📦 where this page comes from