** Description changed: - This is for tracking purpose. + [Impact] + On the LENOVO AMD renoir machines, there is a digital mic directly connected + to the APU instead of the codec, so there are two separate sound cards in the + system, one is for analogue codec driven by hda driver, the other is for the + dmic driven by ASoC acp driver. + + The current audio stack (pulseaudio + alsa-ucm-conf + alsa-lib) doesn't + support this design yet, it could support all audio devices on the codec + well, but it doesn't support that dmic well. In the gnome-control-center, + the dmic becomes two input devices: analog input and multichannel input, + and users can only record sound from analog input, the multichannel input + can't function at all. Besides this issue, there is another issue, after + users plug an external mic, the external mic can't replace the dmic + automatically, this gives users a bad experience since this behaviour is + different from the other audio designs. + + [Fix for pulseaudio] + we need to backport 3 patches: + 2ae94c141f device-port: queue CARD CHANGE event before update default sink + c8653c13fa alsa: adjust ucm sink/source priority according to ports priority + A patch not merged by upstream: + https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/305 + + [Test Case] + On the AMD renoir machines: + Boot the system with these updated packages (already backported kernel drivers + to focal and oem-5.6 kernels), open the gnome-control-center, we could see + the digital mic in the input device tab, and only one input device. we could + record sound through this dmic, we could play sound through the speaker, plug + a headset, we could see the output device become headphones and the input + device become headset mic, we could play sound to headphone and record sound + from headset mic, plug a hdmi monitor, there is hdmi audio choice, play sound + to hdmi audio, we could hear the sound from the speaker on the monitor. Suspend + and resume, redo the previous steps, all audio devices still work well. + + On other machines: + Boot the system with all updated packages or partial updated packages, check + all input devices and output devices, they worked as the same as before. this + SRU doesn't bring any impact on other machines. + + [Regression Risk] + Low
-- 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/1889217 Title: Make digital mic on the AMD renoir machines work under gnome desktop Status in alsa-lib package in Ubuntu: New Status in alsa-ucm-conf package in Ubuntu: New Status in pulseaudio package in Ubuntu: New Status in alsa-lib source package in Focal: New Status in alsa-ucm-conf source package in Focal: New Status in pulseaudio source package in Focal: New Status in alsa-lib source package in Groovy: New Status in alsa-ucm-conf source package in Groovy: New Status in pulseaudio source package in Groovy: New Bug description: [Impact] On the LENOVO AMD renoir machines, there is a digital mic directly connected to the APU instead of the codec, so there are two separate sound cards in the system, one is for analogue codec driven by hda driver, the other is for the dmic driven by ASoC acp driver. The current audio stack (pulseaudio + alsa-ucm-conf + alsa-lib) doesn't support this design yet, it could support all audio devices on the codec well, but it doesn't support that dmic well. In the gnome-control-center, the dmic becomes two input devices: analog input and multichannel input, and users can only record sound from analog input, the multichannel input can't function at all. Besides this issue, there is another issue, after users plug an external mic, the external mic can't replace the dmic automatically, this gives users a bad experience since this behaviour is different from the other audio designs. [Fix for pulseaudio] we need to backport 3 patches: 2ae94c141f device-port: queue CARD CHANGE event before update default sink c8653c13fa alsa: adjust ucm sink/source priority according to ports priority A patch not merged by upstream: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/305 [Test Case] On the AMD renoir machines: Boot the system with these updated packages (already backported kernel drivers to focal and oem-5.6 kernels), open the gnome-control-center, we could see the digital mic in the input device tab, and only one input device. we could record sound through this dmic, we could play sound through the speaker, plug a headset, we could see the output device become headphones and the input device become headset mic, we could play sound to headphone and record sound from headset mic, plug a hdmi monitor, there is hdmi audio choice, play sound to hdmi audio, we could hear the sound from the speaker on the monitor. Suspend and resume, redo the previous steps, all audio devices still work well. On other machines: Boot the system with all updated packages or partial updated packages, check all input devices and output devices, they worked as the same as before. this SRU doesn't bring any impact on other machines. [Regression Risk] Low To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1889217/+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
