dpp401_dscl...manual_scale(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dpp401_dscl_set_scaler_manual_scale(9) — like, the scaler glow-up manual

okay so bestie, welcome to the dpp401_dscl...manual_scale(9) page from the Kernel API Manual 🎀 this one lives in the DPP/display-core corner of the kernel and it's lowkey iconic. no cap.

✨ NAME ✨

dpp401_dscl_set_scaler_manual_scale — the function that lets you manually program the scaler and the line buffer 🦋 (yes, both, she does it all)

🌸 SYNOPSIS 🌸

void dpp401_dscl_set_scaler_manual_scale (struct dpp *dpp_base , const
       struct scaler_data *scl_data );

that's the whole signature, copy it exactly, don't get cute with it 💖

🎀 ARGUMENTS 🎀

  • dpp_base — the high level DPP struct 💅 highkey the main character of this call
  • scl_data — the scalaer_data info 🍓 (yep, that's the spelling in the original, we do not fix it, we respect it)

🔥 DESCRIPTION 🔥

okay so this is the primary function for programming the scaler and line buffer in manual scaling mode. it's giving main character energy, fr fr — this is the one you go to when you want manual scale.

but here's the vibe check: to actually execute the required operations for manual scale, you gotta disable AutoCal first ⚠️ like, no AutoCal, then manual scale. that's the order. periodt.

🫶 SEE ALSO 🫶

the Kernel file, iykyk:

./drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp_dscl.c

and the whole bestie squad of related calls ✨:

💀 friendly reminder that this page is dated October 2026 and shipped from ./drivers/gpu/drm/amd/display/... — so like, that's the source, that's the version, that's the whole vibe 🧚

okay that's the page, go program that scaler bestie, you got this 👑💜

📦 where this page comes from