That's bad that the chipset shows inconsistent behavior. How did you test exactly and how it's broken without AZX_DCAPS_POSFIX_LPIB?
As mentioned in comment 125, the first thing to do is to assure your PCI device listed in the azx_ids[] table explicitly. If not, create an entry to pass like: .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB This should be defined before the generic catch-all entry mentioned in comment 128. I guess this entry addition won't suffice by itself, but this at least aligns with the older AMD chipset, and we can test by adjusting the AZX_DCAPS_PRESET_ATI_SB definition. Then try other parameters mentioned in comment 125, or play with AZX_DCAPS_POSFIX_* or position_fix option. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1801540/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
