drm_connecto...ect_from_ddc(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_connector_helper_detect_from_ddc(9) 💅

okay bestie, welcome to the Kernel API Manual — yes we're literally reading kernel docs together, this is our friendship era 🫶. Today's main character is drm_connector_helper_detect_from_ddc, and no I will not be pronouncing the truncated part out loud, we're all just gonna vibe with it ✨

🌸 NAME 🌸

drm_connector_helper_detect_from_ddc — the girl who reads your EDID and tells you whether your connector is actually, like, there or not 💖

🎀 SYNOPSIS 🎀

int drm_connector_helper_detect_from_ddc (struct drm_connector
*connector , struct drm_modeset_acquire_ctx *ctx , bool force );

like, that's the whole signature, no cap 🦋

🦋 ARGUMENTS 🦋

  • connector — the connector ✨ the actual lil guy we're checking on
  • ctx — the acquire context, aka the permission slip so we don't deadlock 💅
  • force — if it's true, we're doing screen-destructive operations when necessary 😭 yes bestie, destroy-the-screen levels of committed, that's the vibe

⭐ DESCRIPTION ⭐

so the whole point of this function is: it detects the connector status by reading the EDID using drm_probe_ddc. That's the pipeline. That's the whole personality 🌈

⚠️ important detail bestie: drm_probe_ddc requires connector->ddc to be set. If it's not set, that's a you problem, not an EDID problem 🙈

And what does it give back? On success it returns connector_status_connected. On failure it returns connector_status_disconnected. Iconic. Binary. No in-between, no "it's complicated", periodt 💀

👑 RETURN 👑

it returns the connector status — as defined by enum drm_connector_status, iykyk 🔥

🌺 SEE ALSO 🌺

the whole friend group, fr fr — go read these next, no skipping 🍓

and that's the page!! 🧚 mwah 💜 this lil manpage lives in ./drivers/gpu/drm and it's dated October 2026 — yes, the future, we're ahead of schedule, slay 💅✨🌸 see u in the next one bestie!! 🎀💖

📦 where this page comes from