Ok, I'm just a user and don't have access to that mailing list but what I CAN say, is, that my affected system doesn't run radeon or nouveau driver but amdgpu.
Takashi Iwai wrote in November 2019 'amdgpu driver already got the audio-component binding recently, so this problem shouldn't be triggered' (https://mailman.alsa-project.org/pipermail/alsa-devel/2019-November/158350.html) I've no Idea what he exactly means with that because amdgpu driver with recent ubuntu kernels from mid of January 2020 is definitely affected by this issue. In the other bugreport two users already tested your kernels and provided some dmesg logs. So I think they would be happy to help you with further investigations. I for my self didn't install any testing kernels and also have no clue how to 'unload / reload the HD-audio driver' as Takashi Iwai mentioned here: https://mailman.alsa- project.org/pipermail/alsa-devel/2019-November/158707.html So I think you should better place your call for help over there: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834771 Thank you very much for your attention and sorry I couldn't be more helpful ... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1827967 Title: There are 4 HDMI/Displayport audio output listed in sound setting without attach any HDMI/DP monitor Status in HWE Next: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Released Status in linux source package in Disco: Fix Released Bug description: [Impact] In our OEM projects, we often meet this issues, there is no any monitor plugged, but in the gnome-sound-setting, there are 4 hdmi/dp audio devices. [Fix] We check the eld_valid when reporting the hdmi/dp jack event [Test Case] On the problematic machines, we do s3 test without plugging monitor, there is no hdmi audio device in the sound-setting. On the machines without this problem, we do s3 test, pluggin/unplugging monitor test, the hdmi audio work well as before. [Regression Risk] Low. We have done many tests on machines with or without this problem, there is no regression so far. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1827967/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
