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Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] > > **** > Resending as plain text, as the previous message was rejected by the > vger.kernel.org mailing list due to an HTML MIME part. > Apologies to recipients who received the previous copy directly. > *** > > Hello, > > I'm reporting an audio issue on an ASUS TUF Gaming A14 FA401EA > (Ryzen AI MAX+ 392) using AMD ACP70 SoundWire and a Realtek RT721 > SDCA codec. > > I have reproduced the issue on a clean current vanilla 7.3-rc1 > kernel, so this does not appear to be Fedora-, PipeWire-, or > desktop-specific. > > Current clean test environment > ============================== > > Distribution: > Fedora 45 > > Kernel: > 7.3.0-0.rc1.260901.786262be.417.vanilla.fc45.x86_64 > > snd_acp_sdw_legacy_mach quirk: > -1 > > There are no remaining custom snd_acp_sdw_legacy_mach/modprobe > overrides in the current reproduction environment. > > Hardware > ======== > > Laptop: > ASUS TUF Gaming A14 FA401EA > > DMI product: > TUF Gaming A14 FA401EA > > DMI board: > FA401EA > > BIOS: > FA401EA.304 > > CPU/APU: > AMD Ryzen AI MAX+ 392 > > Audio: > AMD ACP70 SoundWire > Realtek RT721 SDCA > > The SoundWire bus exposes one peripheral: > > sdw:0:1:025d:0721:01: Attached > > I do not see TAS2783 devices enumerated on this unit. > > Known-good cases > ================ > > The laptop's built-in speakers worked correctly under the > factory-installed Windows 11. > > USB audio also works correctly under Linux. I tested Corsair > Virtuoso USB headphones and normal audio playback works. > > Therefore the issue appears specific to the internal > AMD ACP70 -> SoundWire -> RT721 audio path. > > Actual behavior > =============== > > Internal speakers: > Completely silent. > > 3.5 mm headphone jack: > No intelligible audio is produced. > When the analog audio path becomes active, the headphones produce > a continuous buzzing noise. The buzz stops when the playback/path > is deactivated. > > Opening the desktop sound control panel can also trigger the buzzing > while the analog audio path is active. > > ALSA playback devices > ===================== > > The amd-soundwire card exposes: > > device 0: > SDW1-PIN0-PLAYBACK-SimpleJack rt721-sdca-aif1-0 > > device 2: > SDW1-PIN1-PLAYBACK-SmartAmp rt721-sdca-aif2-2 > > Direct ALSA reproduction > ======================== > > Internal speakers: > > speaker-test -D hw:CARD=amdsoundwire,DEV=2 \ > -c 2 -r 48000 -F S16_LE -t wav > > The PCM stream starts normally without an ALSA error, but there is > no physical speaker output. > > Analog headphones: > > aplay -D plughw:CARD=amdsoundwire,DEV=0 \ > /usr/share/sounds/alsa/Front_Left.wav > > No speech is heard. The headphone output only buzzes while the > audio path is active. > > Zero-PCM test > ============= > > I also sent only zero-valued PCM samples: > > timeout 10s bash -c ' > dd if=/dev/zero bs=192000 2>/dev/null | > aplay -D hw:CARD=amdsoundwire,DEV=0 \ > -t raw -f S16_LE -r 48000 -c 2 > ' > > The headphone jack still buzzes while the zero-PCM stream is active. > > Therefore the buzz does not appear to represent corrupted application > audio; merely activating playback is sufficient to produce it. > > Mixer / UCM > =========== > > Speaker: > > Speaker Switch = on > rt721 FU06 Playback Volume = 87,87 > > Headphones: > > Headphone Switch = on > rt721 FU05 Playback Volume = 87,87 > > I also explicitly enabled the corresponding Speaker and Headphones > UCM devices. This did not change the result. > > ASoC DAPM during speaker playback > ================================= > > I inspected debugfs while speaker-test on the SmartAmp PCM was > actively running. > > All relevant widgets were ON: > > Speaker: On > rt721 DP3 Speaker Playback: On > stream DP3 Speaker Playback active > rt721 DP3RX: On > rt721 FU 21: On > rt721 FU 23: On > rt721 PDE 41: On > rt721 SPK: On > > The DAPM graph therefore appears to activate the entire expected > speaker path: > > DP3 Speaker Playback > -> DP3RX > -> FU 21 / FU 23 > -> SPK > -> Speaker > > but the physical speakers remain silent. > > Kernel messages > =============== > > RT721 attaches successfully. > > I see: > > rt721-sdca sdw:0:1:025d:0721:01: > Driver needs fixing: Unsorted reg_defaults, sorting the copy > > On an earlier 7.2.x boot I also observed: > > soundwire sdw:0:1:025d:0721:01: > PARITY error detected before INT mask is enabled > > I did not observe additional SoundWire/RT721 errors when starting > or stopping playback. > > Kernels tested > ============== > > The same issue was reproduced on: > > Fedora 44: > 7.2.2-300.fc44.x86_64 > > Fedora 45: > 7.2.2-300.fc45.x86_64 > > Vanilla mainline: > 7.3.0-0.rc1.260901.786262be.417.vanilla.fc45.x86_64 > > CachyOS kernel: > 7.2.2-cachyos1.fc45.x86_64 > > The current reproduction is on the clean vanilla 7.3-rc1 kernel. > > Previous experiments > ==================== > > Before testing clean mainline, I also built a Fedora 7.2.2 kernel > locally and experimentally changed the RT721 speaker endpoint in: > > sound/soc/amd/acp/amd-acp70-acpi-match.c > > from: > > .aggregated = 0 > .group_id = 0 > > to: > > .aggregated = 1 > .group_id = 1 > > This did not change the behavior. > > I also tested that custom kernel with: > > options snd_acp_sdw_legacy_mach quirk=32768 > > The kernel reported: > > amd_sdw amd_sdw: Overriding quirk 0x1 => 0x8000 > > but there was still no speaker output. > > Those experimental overrides have been removed. The current vanilla > 7.3-rc1 reproduction uses quirk=-1 and no custom modprobe options. > > Question > ======== > > Could this FA401EA variant require a different RT721-only topology, > ACP70 configuration, SoundWire setup, or codec initialization quirk? > > The fact that all-zero PCM causes the analog headphone output to buzz > while the stream is active may be particularly relevant. > > I'm happy to test patches or provide register/debug output. > > I can also provide full alsa-info, kernel journal, lspci output, > SoundWire sysfs state, mixer state, and DAPM debugfs output. Could you please log a Bugzilla ticket adding ACPI dump, dmi information and along with alsa info output? > > Thank you. > Cristian