drm_av_sync_delay(9)

✨ drm_av_sync_delay ✨

okay so bestie, this is a page from the Kernel API Manual, and it's all about drm_av_sync_delay — the little function that computes the HDMI/DP sink audio-video sync delay. that's it, that's the whole vibe. 💅

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🌸 SYNOPSIS 🌸

int drm_av_sync_delay (struct drm_connector *connector , const struct
       drm_display_mode *mode );

literally just hand it a connector and a mode and it does the math. slay. ✨

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🎀 ARGUMENTS 🎀

• connector — the connector that's associated with the HDMI/DP sink. like, the actual plug/socket bestie, not the monitor's whole personality.
• mode — the display mode. you know, the resolution-and-timings situation.

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💖 RETURN 💖

it gives you back the HDMI/DP sink's audio-video sync delay, measured in milliseconds. 🕐

but if the sink doesn't support audio or video? it returns 0. no delay, no drama, no notes. 💀

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🦋 SEE ALSO 🦋

these all live in the kernel file ./drivers/gpu/drm/drm_edid.c, so it's giving EDID main-character energy fr fr. go read them, they're iconic 👑:

• drm_edid_header_is_valid(9), drm_edid_is_valid(9), drm_edid_valid(9), drm_do_probe_ddc_edid(9), drm_edid_override_connector_update(9)
• drm_edid_raw(9), drm_edid_alloc(9), drm_edid_dup(9), drm_edid_free(9), drm_probe_ddc(9), drm_get_edid(9)
• drm_edid_read_custom(9), drm_edid_read_ddc(9), drm_edid_read(9)
• drm_edid_get_product_id(9), drm_edid_print_product_id(9), drm_edid_get_panel_id(9), drm_edid_read_base_block(9)
• drm_get_edid_switcheroo(9), drm_edid_read_switcheroo(9), drm_edid_duplicate(9)
• edid_get_quirks(9), drm_match_cea_mode(9), drm_display_mode_from_cea_vic(9), drm_edid_match(9)
• drm_edid_get_monitor_name(9), drm_edid_to_sad(9), drm_edid_to_speaker_allocation(9)
• drm_detect_hdmi_monitor(9), drm_detect_monitor_audio(9), drm_default_rgb_quant_range(9)
• drm_edid_connector_update(9), drm_edid_connector_add_modes(9), drm_connector_update_edid_property(9)
• drm_add_edid_modes(9), drm_add_modes_noedid(9)
• drm_hdmi_avi_infoframe_from_display_mode(9), drm_hdmi_avi_infoframe_quant_range(9), drm_hdmi_vendor_infoframe_from_display_mode(9), drm_edid_is_digital(9)

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that's the whole page, no cap. every option, every ref, every fact — all here. 🫶

and that's the wrap, bestie!! this cutie lives in ./drivers/gpu/drm, it's dated October 2026, and the page is literally just drm_av_sync_delay(9) — same name, same energy. go sync those A/V vibes 🌈💜