dm_test_brig...rom_user_max(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 NAME 🌸

okay so bestie, gather round — this page is all about dm_test_brightness_from_user_max 💅 which, per its own official one-liner, is the "Test Brightness from user max" test. that's the whole name, that's the whole vibe, no notes 🎀

✨ SYNOPSIS ✨

void dm_test_brightness_from_user_max (struct kunit *test );

that's it. that's the signature. she's a void, she takes one argument, she returns nothing, she simply is 💖 (and yes, there's a lil space before that closing paren in the original — we keep it, character for character, no cap 🔥)

🦋 ARGUMENTS 🦋

  • test — the KUnit test context 🧚 like, that's the little bundle of test-scoped stuff the KUnit framework hands you. it's the plus-one at the party, the backstage pass, the main character of the function's parameter list ✨

👑 SEE ALSO 👑

💜 the kernel file

fr fr this test lives in this exact file, so go read it:

  • Kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_backlight_test.c

💀 the whole friend group (a.k.a. the backlight test lineup)

okay this list is long and honestly iconic — every single one of these is a sibling test with a (9) manual reference, and no, we are not skipping a single one 🙈 arrange yourselves:

ngl bestie, if you're chasing a backlight bug in the AMD display code, this list is basically your group chat of suspects 🕵️‍♀️ every one of them is a real manual page, so go tap through them 💅

and that's the page! 🫶 this lil writeup comes from the Kernel API Manual, source path ./drivers/gpu/drm/amd/display/..., dated October 2026 — so if you're reading this in the future, hi, love you, hope your brightness is at a comfortable level 🌈⭐ bye bestie!! 💖🎀🦋

📦 where this page comes from