(In reply to Takashi Iwai from comment #127)
> Hm, interesting, AZX_DCAPS_POSFIX_LPIB basically sets the position reporting
> based on LPIB instead of the position buffer. I thought the position buffer
> isn't available or unreliable on non-Intel chips, but it might be different
> on the recent AMD one.
Contrary to what Ernst experienced, removing AZX_DCAPS_POSFIX_LPIB
completely broke audio on my system (ASUS PRIME X470, also 1022:1457),
so I guess it's still unreliable as you mentioned.
Was looking through the pci_ids array in sound/pci/hda/hda_intel.c and
noticed that my audio controller (1022:1457) isn't listed.
The only thing I can see that would match is the following, which seems
to be intended for AMD GPUs.
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
.class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
.class_mask = 0xffffff,
.driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
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https://bugs.launchpad.net/bugs/1801540
Title:
Microphone distorted sound on ALC892/1220 on AMD chipsets
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