drm_kms_helper_poll_disable(9)

💅 drm_kms_helper_poll_disable(9) — the Kernel API Manual era

okay bestie, so this one lives in the Kernel API Manual and it's called drm_kms_helper_poll_disable — say that five times fast, I dare you 🫶

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✨ NAME ✨

drm_kms_helper_poll_disable — literally just disable output polling, that's the whole vibe 🎀

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🌸 SYNOPSIS 🌸

void drm_kms_helper_poll_disable (struct drm_device *dev );

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🦋 ARGUMENTS 🦋

• dev — a drm_device. that's it, that's the argument 💜

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🔥 DESCRIPTION 🔥

So this function disables the output polling work. no cap, that's the entire job ✨

Drivers can call this helper from their device suspend implementation — like, it's made for that moment, iykyk. And here's the gorgeous part: it is not an error to call this even when output polling isn't enabled or is already disabled. she's unbothered, she's chill, she does not care 🙈💅

Polling gets re-enabled by calling drm_kms_helper_poll_enable. reciprocal queen behavior 👑

⚠️ But bestie, listen — if the polling was never initialized, this call will trigger a warning and return. not a crash, but she will make a scene 😭

Also note: calls to enable and disable polling must be strictly ordered. Which is automatically the case when they're only called from suspend/resume callbacks — so like, stay in your lane and you're fine fr fr 🌈

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💖 SEE ALSO 💖

the whole friend group, honestly — go say hi 👋

• 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_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_crtc_helper_mode_valid_fixed(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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and that's the page, bestie!! 💖 this little icon was brought to you by ./drivers/gpu/drm, dated October 2026 — go drink some water and order your enable/disable calls properly 🧚🌸⭐