Commit 2bb2136e authored by Maxim Mikityanskiy's avatar Maxim Mikityanskiy Committed by Greg Kroah-Hartman
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ALSA: hda: intel: Add Lenovo IdeaPad Z570 to probe denylist



[ Upstream commit becc794c ]

Lenovo IdeaPad Z570 with NVIDIA GeForce Ge 540M doesn't have sound on
the discrete GPU. The HDA controller in DGPU is disabled by BIOS, but
then reenabled by quirk_nvidia_hda(). The probe fails and ends up with
the "GPU sound probed, but not operational" error.

Add this laptop to DMI-based denylist to prevent probe early. DMI is
used, because the audio device has zero subsystem IDs, and this entry
would be too much, blocking all 540M chips:
    PCI_DEVICE_SUB(0x10de, 0x0bea, 0x0000, 0x0000)
Also, this laptop comes in a variety of modifications with different
NVIDIA GPUs, so the DMI check will cover them all.

Signed-off-by: default avatarMaxim Mikityanskiy <maxtram95@gmail.com>
Link: https://patch.msgid.link/20250208214602.39607-3-maxtram95@gmail.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 922c5428
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