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[BUG] Vivobook S 16 Flip: No sound from the speakers, headphone output works fine #5582

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[BUG] Vivobook S 16 Flip: No sound from the speakers, headphone output works fine#5582
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bugSomething isn't working

Description

@fnevgeny
fnevgeny
opened on Oct 29, 2025

No sound is heard from the built-in speakers. The output itself is recognized, and the volume meters show the signal. When headphones are plugged in, the output is automatically switched correctly, and the sound is present.

Ubuntu 25.10 with all the updates applied.
uname: 6.17.0-5-generic thesofproject/sof#5-Ubuntu SMP PREEMPT_DYNAMIC Mon Sep 22 10:00:33 UTC 2025 x86_64 GNU/Linux

$ dpkg -l|grep firmware-sof
ii firmware-sof-signed 2025.05.1-1 all Intel SOF firmware - signed

$ dmesg | grep -i "sof.*head"
[    6.412708] input: sof-hda-dsp Headphone as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0/input20

$ inxi -A
Audio:
  Device-1: Intel Lunar Lake-M HD Audio driver: sof-audio-pci-intel-lnl
  API: ALSA v: k6.17.0-5-generic status: kernel-api

$ cat /proc/asound/card0/codec* | grep Codec
Codec: Realtek ALC294
Codec: Intel Lunar Lake HDMI

Activity

  1. fnevgeny
    added
    bugSomething isn't working
    on Oct 29, 2025

  2. lgirdwood commented on Oct 30, 2025

    @lgirdwood
    lgirdwood
    on Oct 30, 2025
    Member

    adding @shumingfan for Realtek codec. Maybe missing verbs ?

  3. fnevgeny commented on Oct 30, 2025

    @fnevgeny
    fnevgeny
    on Oct 30, 2025
    Author

    I forgot to mention that with the legacy HDA driver, the symptoms are identical.

  4. fnevgeny commented on Oct 31, 2025

    @fnevgeny
    fnevgeny
    on Oct 31, 2025
    Author

    Update: I was able to make the speakers work by using the script here. The actual commands are black magic to me. Is it something that should/could be managed by this (SOF) project?

  5. fnevgeny commented on Oct 31, 2025

    @fnevgeny
    fnevgeny
    on Oct 31, 2025
    Author

    One more update: now that I know what to look for, I see in the dmesg output:

    [    3.103133] tas2781-hda i2c-TIAS2781:00: Failed to get Speaker id.
[    3.103140] tas2781-hda i2c-TIAS2781:00: read acpi error, ret: -2
[    3.103142] tas2781-hda i2c-TIAS2781:00: error -ENOENT: Platform not supported
[    3.103201] tas2781-hda i2c-TIAS2781:00: probe with driver tas2781-hda failed with error -2

  6. lgirdwood commented on Nov 3, 2025

    @lgirdwood
    lgirdwood
    on Nov 3, 2025
    Member

    Update: I was able to make the speakers work by using the script here. The actual commands are black magic to me. Is it something that should/could be managed by this (SOF) project?

    These commands are probably missing from Realtek Linux codec driver. @shumingfan should be able to help here.

  7. lgirdwood
    transferred this issue fromthesofproject/sofon Nov 3, 2025

  8. shumingfan commented on Nov 18, 2025

    @shumingfan
    shumingfan
    on Nov 18, 2025

    @KailangYang Could you help with this issue? Do we need support from TI, or can you handle it on your side?

  9. KailangYang commented on Nov 18, 2025

    @KailangYang
    KailangYang
    on Nov 18, 2025

    This is Ti Amp for spk. Please report to Ti.

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