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linux/sound/hda/controllers
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Panagiotis Foliadis 27338f3360 ALSA: hda/intel: increase default bdl_pos_adj for Nvidia controllers 
commit e9fb2028f1 upstream.

The default bdl_pos_adj of 32 for Nvidia HDA controllers is
insufficient on GA102 (and likely other recent Nvidia GPUs) after S3
suspend/resume. The controller's DMA timing degrades after resume,
causing premature IRQ detection in azx_position_ok() which results in
silent HDMI/DP audio output despite userspace reporting a valid
playback state and correct ELD data.

Increase bdl_pos_adj to 64 for AZX_DRIVER_NVIDIA, matching the value
already used by Intel Apollo Lake for the same class of timing issue.

Cc: stable@vger.kernel.org
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221069
Suggested-by: Charalampos Mitrodimas <charmitro@posteo.net>
Signed-off-by: Panagiotis Foliadis <pfoliadis@posteo.net>
Link: https://patch.msgid.link/20260225-nvidia-audio-fix-v1-1-b1383c37ec49@posteo.net
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-03-12 07:09:38 -04:00
..
acpi.c ALSA: hda: Move controller drivers into sound/hda/controllers directory 2025-07-11 09:55:37 +02:00
intel.c ALSA: hda/intel: increase default bdl_pos_adj for Nvidia controllers 2026-03-12 07:09:38 -04:00
intel.h ALSA: hda: Move controller drivers into sound/hda/controllers directory 2025-07-11 09:55:37 +02:00
intel_trace.h ALSA: hda: Move controller drivers into sound/hda/controllers directory 2025-07-11 09:55:37 +02:00
Kconfig ALSA: hda: Move controller drivers into sound/hda/controllers directory 2025-07-11 09:55:37 +02:00
Makefile ALSA: hda: Move controller drivers into sound/hda/controllers directory 2025-07-11 09:55:37 +02:00
tegra.c ALSA: hda: Move controller drivers into sound/hda/controllers directory 2025-07-11 09:55:37 +02:00