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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? ++RTK Team Similar kind of issue reported in another mail thread, realtek is working on it. @jack could you please comment on it. >> >> Thank you. >> Cristian >