Hi,
On 6/13/22 10:28, Takashi Iwai wrote:
On Mon, 13 Jun 2022 09:54:47 +0200, Hans de Goede wrote:
Hi All,
There is a problem with the sound on the Lenovo Yoga Duet 7 13IML05, which requires a SND_PCI_QUIRK to fix. But there already is an existing quirk for another Lenovo laptop using the same PCI subsys vend + prod ids.
For more details see: https://wiki.archlinux.org/title/Lenovo_Yoga_Duet_7_13IML05#Audio
So I guess this means that we need to add a way to also include a DMI match for SND_PCI_QUIRKs ?
Maybe add a:
const struct dmi_systemid *dmi_ids;
member to struct snd_pci_quirk and a new SND_PCI_QUIRK_DMI macro to set this?
Do both machines have the very same codec? I couldn't find alsa-info.sh output for Duet 7, but at least, C940 seems with ALC298 (0x10ec0298), judging from https://bugzilla.kernel.org/show_bug.cgi?id=205755 If Duet 7 has a different codec (e.g. ALC287 0x10ec0287), we can distinguish from that.
I've just asked the reporter of this for alsa-info.sh output.
So assuming the codec is indeed different how would I go about fixing this ?
Regards,
Hans