June 2025 - Alsa-devel - mailman.alsa-project.org

USB-Audio: Changed GoXLR 'Stream Mix' channel names to match the latest Windows release
by GitHub pull_request - edited 05 Jun '25

05 Jun '25

alsa-project/alsa-ucm-conf pull request #572 was edited from FrostyCoolSlug: This change is to match the Broadcast Mix channel names to the latest release of the GoXLR App on Windows. Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/572 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/572.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf

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Changed 'Stream Mix' channel names to match the latest Window release
by GitHub pull_request - opened 05 Jun '25

05 Jun '25

alsa-project/alsa-ucm-conf pull request #572 was opened from FrostyCoolSlug: This change is to match the Broadcast Mix channel names to the latest release of the GoXLR App on Windows. Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/572 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/572.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf

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Intel: avs: Add new UCMs after recent kernel work
by GitHub pull_request - opened 04 Jun '25

04 Jun '25

alsa-project/alsa-ucm-conf pull request #571 was opened from amadeuszslawinski-intel: After recent work to rename cards [1], userspace expects different card names and device numbers. [1] https://lore.kernel.org/linux-sound/20250407124154.1713039-1-amadeuszx.slaw… There is one problem with HDMI not working. As far as I can tell, this is due to macro not handling pcm=0 correctly, but I have no idea how to fix that. ``` numid=1,iface=CARD,name='HDMI/DP Jack' numid=7,iface=CARD,name='HDMI/DP,pcm=1 Jack' numid=13,iface=CARD,name='HDMI/DP,pcm=2 Jack' ``` ``` DefineMacro.HDMI.If.hdmi { Condition { Type ControlExists Control "iface=CARD,name='HDMI/DP,pcm=${var:__Device} Jack'" } ``` I've opted for adding files instead of moving and editing them, because there may be users who currently use old card names. Main differences are: * HDAudio macros can now be used for HD-Audio card * DMIC now automatically constraints number of channels, so no need for two separate files * rewrote some files to make use of conditional syntax Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/571 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/571.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf

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alsaloop: only log xrun debug messages when verbose
by GitHub pull_request - opened 04 Jun '25

04 Jun '25

alsa-project/alsa-utils pull request #302 was opened from jacmet: Xruns can happen quite often (E.G. continuously when using alsaloop to/from the UAC gadget driver without a connected host), so only log the debug messages when verbose logging has been requested to not flood the logs. Request URL : https://github.com/alsa-project/alsa-utils/pull/302 Patch URL : https://github.com/alsa-project/alsa-utils/pull/302.patch Repository URL: https://github.com/alsa-project/alsa-utils

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alsabat: fills /tmp until out of memory
by GitHub issues - opened 04 Jun '25

04 Jun '25

alsa-project/alsa-utils issue #301 was opened from eurofun: alsabat creates its capture file by using mkstemp() in bat.c. So it creates a new file under /tmp each time it runs (at least when configured to capture something...) and never removes any until no space is left. I propose it should by default delete the files it opened after analysis and keep the current behavior as an option in order to allow inspecting captured files after alsabat ran. Or alternatively an option to specify the capture filename. Issue URL : https://github.com/alsa-project/alsa-utils/issues/301 Repository URL: https://github.com/alsa-project/alsa-utils

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[Bug] Internal microphone not working on ASUS VivoBook (ALC256, Ubuntu 24.04+, kernel 6.x)
by Anas Muhamad Pauzi 03 Jun '25

03 Jun '25

Dear ALSA Developers, I'm writing to report an issue affecting the internal microphone on the ASUS VivoBook (11th Gen Intel i7, audio codec: Realtek ALC256) under Ubuntu 24.04 LTS using kernel 6.x. Summary: - Internal microphone is detected by ALSA and PipeWire (input device is listed, RUNNING state) - Volume and boost levels are at 100%, not muted - However, no sound is recorded — mic is completely silent - External USB microphones work fine on the same system What I’ve tested: - Ubuntu 24.04 default kernel 6.11 → internal mic not working - Mainline kernel 6.15 via mainline tool → still not working - Ubuntu 20.04 (kernel 5.x, likely 5.4 or 5.15 HWE) → **internal mic was working fine** This suggests a regression or pin configuration issue in recent kernels affecting ALC256 on this laptop. Here is the full ALSA info dump: https://alsa-project.org/db/?f=6d6466ba903b2e08b351046571e0fc54ddd13981 And here is the related Launchpad bug report: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2112330 I’d be happy to test a patch or provide additional logs if needed. Many thanks for your support and your work on ALSA! Best regards, *Anas Muhamad Pauzi * ASUS VivoBook (11th Gen Intel Core i7, Realtek ALC256)

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How to know how much audio has been played?
by GitHub issues - opened 03 Jun '25

03 Jun '25

alsa-project/alsa-lib issue #458 was opened from yangyagami: I tried to get an answer from AI, but the result has discrepancies. ```cpp #include <stdio.h> #include <iostream> #include <cmath> #include <thread> #include <alsa/asoundlib.h> #define SAMPLE_RATE 44100 #define FREQUENCY 440.0 // A4 note #define DURATION 5.0 // seconds using namespace std::chrono_literals; int main() { snd_pcm_t *handle; snd_pcm_hw_params_t *params; unsigned int rate = SAMPLE_RATE; int dir; int pcm; pcm = snd_pcm_open(&handle, "default", SND_PCM_STREAM_PLAYBACK, 0); if (pcm < 0) { std::cerr << "Unable to open PCM device: " << snd_strerror(pcm) << std::endl; return 1; } snd_pcm_hw_params_alloca(&params); snd_pcm_hw_params_any(handle, params); snd_pcm_hw_params_set_access(handle, params, SND_PCM_ACCESS_RW_INTERLEAVED); snd_pcm_hw_params_set_format(handle, params, SND_PCM_FORMAT_S16_LE); snd_pcm_hw_params_set_rate_near(handle, params, &rate, &dir); snd_pcm_hw_params_set_channels(handle, params, 1); pcm = snd_pcm_hw_params(handle, params); if (pcm < 0) { std::cerr << "Unable to set HW parameters: " << snd_strerror(pcm) << std::endl; return 1; } int samples = static_cast<int>(DURATION * SAMPLE_RATE); int16_t *buffer = new int16_t[samples]; for (int i = 0; i < samples; ++i) { buffer[i] = static_cast<int16_t>(32767 * sin(2 * M_PI * FREQUENCY * i / SAMPLE_RATE)); } pcm = snd_pcm_writei(handle, buffer, samples); if (pcm < 0) { std::cerr << "Playback error: " << snd_strerror(pcm) << std::endl; } while (true) { snd_pcm_sframes_t delay; int rc = snd_pcm_delay(handle, &delay); if (rc == 0) { double played_sec = (samples - delay) / 44100.0f; printf("Played: %.2f sec\n", played_sec); } else { std::cerr << snd_strerror(rc) << std::endl; break; } } snd_pcm_drain(handle); delete[] buffer; snd_pcm_close(handle); return 0; } ``` Issue URL : https://github.com/alsa-project/alsa-lib/issues/458 Repository URL: https://github.com/alsa-project/alsa-lib

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No input from internal microphone on ASUS VivoBook (ALC256, Ubuntu 24.04, kernel 6.15)
by Anas Muhamad Pauzi 02 Jun '25

02 Jun '25

Dear ALSA Developers, I’m reporting an issue with the internal microphone on an ASUS VivoBook (11th Gen Intel Core i7, Realtek ALC256 codec) running Ubuntu 24.04 LTS. The internal mic is detected by ALSA and PulseAudio/PipeWire, but no audio input is captured, even with max gain and boost. I have tested it on both Ubuntu's default kernel (6.11) and mainline kernel 6.15 — the issue persists. ALSA detects the codec, and the input pin (0x12) appears to be present, but remains silent. Here is the ALSA info dump: https://alsa-project.org/db/?f=6d6466ba903b2e08b351046571e0fc54ddd13981 Ubuntu Launchpad bug report: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2112330 If this requires a model-specific quirk or pin fix, I’m happy to test a patch. Many thanks, Anas Pauzi

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[PATCH] ALSA: hda: Add new pci id for AMD GPU display HD audio controller
by Vijendar Mukunda 02 Jun '25

02 Jun '25

Add new pci id for AMD GPU display HD audio controller(device id- 0xab40). Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda(a)amd.com> --- sound/pci/hda/hda_intel.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 512fb22f5e5e..3f8b2bf6eab5 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2715,6 +2715,9 @@ static const struct pci_device_id azx_ids[] = { { PCI_VDEVICE(ATI, 0xab38), .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS | AZX_DCAPS_PM_RUNTIME }, + { PCI_VDEVICE(ATI, 0xab40), + .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS | + AZX_DCAPS_PM_RUNTIME }, /* GLENFLY */ { PCI_DEVICE(PCI_VENDOR_ID_GLENFLY, PCI_ANY_ID), .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8, -- 2.45.2

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snd_pcm_drain stucked.
by GitHub issues - opened 02 Jun '25

02 Jun '25

alsa-project/alsa-lib issue #457 was opened from yangyagami: When snd_pcm_drain is called, if snd_pcm_drop is called in another thread, snd_pcm_drain will get stuck. ```cpp #include <iostream> #include <cmath> #include <thread> #include <alsa/asoundlib.h> #define SAMPLE_RATE 44100 #define FREQUENCY 440.0 // A4 note #define DURATION 5.0 // seconds using namespace std::chrono_literals; int main() { snd_pcm_t *handle; snd_pcm_hw_params_t *params; unsigned int rate = SAMPLE_RATE; int dir; int pcm; pcm = snd_pcm_open(&handle, "default", SND_PCM_STREAM_PLAYBACK, 0); if (pcm < 0) { std::cerr << "Unable to open PCM device: " << snd_strerror(pcm) << std::endl; return 1; } snd_pcm_hw_params_alloca(&params); snd_pcm_hw_params_any(handle, params); snd_pcm_hw_params_set_access(handle, params, SND_PCM_ACCESS_RW_INTERLEAVED); snd_pcm_hw_params_set_format(handle, params, SND_PCM_FORMAT_S16_LE); snd_pcm_hw_params_set_rate_near(handle, params, &rate, &dir); snd_pcm_hw_params_set_channels(handle, params, 1); pcm = snd_pcm_hw_params(handle, params); if (pcm < 0) { std::cerr << "Unable to set HW parameters: " << snd_strerror(pcm) << std::endl; return 1; } int samples = static_cast<int>(DURATION * SAMPLE_RATE); int16_t *buffer = new int16_t[samples]; for (int i = 0; i < samples; ++i) { buffer[i] = static_cast<int16_t>(32767 * sin(2 * M_PI * FREQUENCY * i / SAMPLE_RATE)); } pcm = snd_pcm_writei(handle, buffer, samples); if (pcm < 0) { std::cerr << "Playback error: " << snd_strerror(pcm) << std::endl; } std::thread t([handle](){ std::this_thread::sleep_for(500ms); snd_pcm_drop(handle); }); snd_pcm_drain(handle); t.join(); delete[] buffer; snd_pcm_close(handle); return 0; } ``` gdb output ```shell Thread 1 "main" received signal SIGINT, Interrupt. 0x00007ffff71b5e22 in ?? () from /usr/lib/libc.so.6 (gdb) bt #0 0x00007ffff71b5e22 in ?? () from /usr/lib/libc.so.6 #1 0x00007ffff71a9fda in ?? () from /usr/lib/libc.so.6 #2 0x00007ffff71aa64c in ?? () from /usr/lib/libc.so.6 #3 0x00007ffff71acd1e in pthread_cond_wait () from /usr/lib/libc.so.6 #4 0x00007ffff6b9e2b9 in pw_thread_loop_wait () from /usr/lib/libpipewire-0.3.so.0 #5 0x00007ffff7f2ec8f in ?? () from /usr/lib/alsa-lib/libasound_module_pcm_pipewire.so #6 0x00007ffff777c2b8 in ?? () from /usr/lib/libasound.so.2 #7 0x0000555555558d6f in main () at main.cc:116 (gdb) ``` Issue URL : https://github.com/alsa-project/alsa-lib/issues/457 Repository URL: https://github.com/alsa-project/alsa-lib

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