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Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] > > The Alienware m15 R7 AMD exposes an ACP6x DMIC path, but its DMI > product name is not present in the Yellow Carp ACP quirk table. 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 Reviewed-by: Vijendar Mukunda  > --- > 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