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As a result, the ACP machine driver does not enable the DMIC card on this system. Add the DMI product name for this machine. With this quirk applied, the kernel reports: acp_yc_mach acp_yc_mach.0: Enabling ACP DMIC support via DMI and ALSA exposes the ACP DMIC capture device: card 3: acp6x device 0: DMIC capture dmic-hifi-0 Tested on an Alienware m15 R7 AMD with product SKU 0B59. Link: https://jethachan.net/dev/2026/03/21/fixing-internal-microphone-alienware-linux.html Assisted-by: OpenAI-Codex:gpt-5.5 Signed-off-by: Jetha Chan --- sound/soc/amd/yc/acp6x-mach.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c index 000000000000..000000000000 100644 --- a/sound/soc/amd/yc/acp6x-mach.c +++ b/sound/soc/amd/yc/acp6x-mach.c @@ -504,6 +504,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = { .driver_data = &acp6x_card, .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m15 R7 AMD"), + } + }, + { + .driver_data = &acp6x_card, + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Alienware"), DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m17 R5 AMD"), } }, -- 2.50.0