dm_test_fre..._not_capable(9)

💅 dm_test_fre..._not_capable(9) 💅

okay bestie, welcome to the Kernel API Manual — yes that's the whole manual name, it's giving "official but make it cute" ✨ this page is all about one single KUnit test and honestly? she's iconic for it 🎀

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🌸 NAME 🌸

dm_test_freesync_config_not_capable — the test that checks a non-freesync sink reports UNSUPPORTED, fr fr 💖

like, that's literally the whole job. plug in a sink that doesn't do freesync, run this test, and make sure the answer that comes back is UNSUPPORTED. no cap, that's it, that's the test 👑

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✨ SYNOPSIS ✨

void dm_test_freesync_config_not_capable (struct kunit *test );

that's the whole signature, bestie — void in, void out, no return value to worry about 🫶

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🦋 ARGUMENTS 🦋

• test — The KUnit test context 💅 this is the little bundle of test framework goodness that gets handed to you, and you just pass it along. she's the main character, you're the supporting cast, iykyk 😌

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🌈 SEE ALSO 🌈

okay this is the part where we list the whole friend group because they all show up to the same party 🎉

Kernel file — go look at the source, it's right here:

./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_freesync_test.c

and now the squad, all of them, in order, no skips because we don't do that here 💜

• dm_test_timing_unchanged_null_args(9)
• dm_test_timing_unchanged_identical_modes(9)
• dm_test_timing_unchanged_vrr_shift(9)
• dm_test_timing_unchanged_clock_changed(9)
• dm_test_set_freesync_fixed_config_60hz(9)
• dm_test_dc_timing_adjust_pending(9)
• dm_test_dc_timing_adjust_active_fixed(9)
• dm_test_dc_timing_adjust_vrr_toggle(9)
• dm_test_dc_timing_adjust_not_needed(9)
• dm_test_freesync_config_writeback(9)
• dm_test_freesync_config_out_of_range(9)
• dm_test_freesync_config_active_variable(9)
• dm_test_freesync_config_inactive(9)
• dm_test_freesync_config_active_fixed(9)
• dm_test_reset_freesync_config(9)

like, that's fifteen siblings plus this one and they're all hanging out in the same file. family reunion vibes 🧚

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quick vibe check bestie: every single one of those is a real reference and every one of them matters, so don't go skipping any of them when you're reading the docs, okay? 🙈

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and that's the page! source for all this? the file lives at ./drivers/gpu/drm/amd/display/... and this particular drop is dated October 2026 📅 and it's all part of dm_test_fre..._not_capable(9) in the Kernel API Manual. slay, go write some tests, periodt 💅💖