... and looking back at the development history again, this seems too early to
be delighted. Actually the change to PRESET_AMD_SB was done as a fix for the
certain devices in the commit d2c63b7dfd06788a466d5ec8a850491f084c5fc2
ALSA: hda - Apply AMD controller workaround for Raven platform
So moving it back would break something else, too. Hmm.
That said, the behavior might depend on the PCM parameters, or the chip
revision, BIOS, or whatever subtle things...
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https://bugs.launchpad.net/bugs/1801540
Title:
Microphone distorted sound on ALC892/1220 on AMD chipsets
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Won't Fix
Status in pulseaudio package in Ubuntu:
Won't Fix
Bug description:
Not sure if I'll report this upstream but there is definitely an issue
with microphone recording on my desktop, this is not happening on my
laptop which has a different codec.
Already tried all workarounds possible, no luck. Only with my desktop
with this particular motherboard. No issues in Windows, the sound
recorded in there is distorted and has some static and robotic tone on
high-pitch.
alsa-info on the attachments
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