drm_crtc_hel..._valid_fixed(9)

✨ drm_crtc_helper_mode_valid_fixed(9) ✨

okay so this is a page from the Kernel API Manual bestie, and it's about drm_crtc_helper_mode_valid_fixed — literally the vibe-checker for display modes 💅

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💖 NAME 💖

drm_crtc_helper_mode_valid_fixed — Validates a display mode

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🎀 SYNOPSIS 🎀

enum drm_mode_status drm_crtc_helper_mode_valid_fixed (struct drm_crtc
*crtc , const struct drm_display_mode *mode , const struct
drm_display_mode *fixed_mode );

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🌸 ARGUMENTS 🌸

• crtc — the crtc. that's it, that's the whole description, she's lowkey mysterious 🫶
• mode — the mode to validate. the one we're putting through the vibe check 🔥
• fixed_mode — the display hardware's mode. the one that's already iconic and not going anywhere 👑

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⭐ RETURN ⭐

MODE_OK on success 🎉 — or another mode-status code otherwise. so like, if it's not MODE_OK, it's giving "nope" but with extra steps 😭

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🦋 SEE ALSO 🦋

the whole friend group, fr fr 💜:

• Kernel file ./drivers/gpu/drm/drm_probe_helper.c output probing helper overview(9)
• drm_kms_helper_poll_enable(9)
• drm_kms_helper_poll_reschedule(9)
• drm_helper_probe_detect(9)
• drm_helper_probe_single_connector_modes(9)
• drm_kms_helper_hotplug_event(9)
• drm_kms_helper_connector_hotplug_event(9)
• drm_kms_helper_is_poll_worker(9)
• drm_kms_helper_poll_disable(9)
• drm_kms_helper_poll_init(9)
• drm_kms_helper_poll_fini(9)
• drmm_kms_helper_poll_init(9)
• drm_connector_helper_hpd_irq_event(9)
• drm_helper_hpd_irq_event(9)
• drm_connector_helper_get_modes_fixed(9)
• drm_connector_helper_get_modes(9)
• drm_connector_helper_tv_get_modes(9)
• drm_connector_helper_detect_from_ddc(9)

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ngl the whole squad is in here, so if you're lost, just start clicking through the drm_kms_helper_* girlies and you'll find your way home 🧚

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okay that's the whole page, no notes 💅 this one lives at ./drivers/gpu/drm, dated October 2026, and it's page drm_crtc_hel..._valid_fixed(9) of the Kernel API Manual. periodt. 🍓✨