[Bug 2170917] Re: No internal microphone on AMD systems with RT712-VB SoundWire codec

** Also affects: linux-oem-7.3 (Ubuntu) Importance: Undecided Status: New ** No longer affects: linux-oem-7.0 (Ubuntu) ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Stonking) Importance: Undecided Status: New ** Also affects: linux-oem-7.3 (Ubuntu Stonking) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Resolute) Importance: Undecided Status: New ** Also affects: linux-oem-7.3 (Ubuntu Resolute) Importance: Undecided Status: New -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2170917 Title: No internal microphone on AMD systems with RT712-VB SoundWire codec Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-7.3 package in Ubuntu: Invalid Status in linux source package in Resolute: Invalid Status in linux-oem-7.3 source package in Resolute: In Progress Status in linux source package in Stonking: In Progress Status in linux-oem-7.3 source package in Stonking: Invalid Bug description: [Impact] On some AMD systems with an RT712-VB SoundWire codec and TAS2783 amplifiers, the internal microphone and speakers don't show up. The machine driver needed to enable them is 28114992dd2f ("ASoC: amd: acp: enable TAS2783 and add RT712-VB SoundWire machine"). That commit makes SND_SOC_AMD_LEGACY_SDW_MACH select SND_SOC_TAS2783_SDW without checking its dependencies. The codec also needs SND_SOC_SDCA andEFI. With EFI=n, the build warns: WARNING: unmet direct dependencies detected for SND_SOC_TAS2783_SDW Depends on [n]: SOUND [=m] && SND [=m] && SND_SOC [=m] && SOUNDWIRE [=m] && SND_SOC_SDCA [=m] && EFI [=n] Selected by [m]: - SND_SOC_AMD_LEGACY_SDW_MACH [=m] && ... The codec is force-enabled when its dependencies are not met. This can break builds and configs. [Fix] Two Kconfig fixes for the above commit. Both are in sound/soc/amd/acp/Kconfig. d06607bafb36 ASoC: amd: acp: fix TAS2783 SoundWire codec unmet dependencies Changes the select to "select SND_SOC_TAS2783_SDW if SND_SOC_SDCA && EFI". 4d2b92b82ee8 ASoC: amd: acp: add EFI dependency for selecting TAS2783 Makes SND_SOC_AMD_LEGACY_SDW_MACH depend on EFI. Both commits are merged upstream in the ASoC tree (Mark Brown). Neither is in a released v* tag yet. Links: https://patch.msgid.link/20260924124205.3376083-1-syed.sabakareem@amd.com https://patch.msgid.link/20260925131137.146638-1-arnd@kernel.org [Test Plan] Check the config with EFI off: $ scripts/config --disable EFI $ make olddefconfig Without patches: the "unmet direct dependencies detected for SND_SOC_TAS2783_SDW" warning shows up. With patches: no warning. On the Ubuntu config (EFI=y, SDCA=m), check the codec is still built: $ grep -E 'SND_SOC_TAS2783_SDW|SND_SOC_AMD_LEGACY_SDW_MACH' .config Both should be =m. On an affected AMD machine, check the microphone is still present: $ arecord -l The internal digital mic capture device should be listed. [Where problems could occur] Could break the AMD ACP SoundWire machine driver (snd-acp-sdw-legacy-mach) and the TAS2783 codec build. If the Kconfig conditions are wrong, the TAS2783 codec or the machine driver would not be built. The system would then have no internal microphone or speakers on the affected AMD systems. The new EFI dependency would also hide the machine driver in configs without EFI. Ubuntu kernels enable EFI, so this should not matter for them. The change only touches Kconfig. It has no runtime code change. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2170917/+subscriptions