apport information ** Attachment added: "ProcCpuinfoMinimal.txt" https://bugs.launchpad.net/bugs/2172152/+attachment/6012756/+files/ProcCpuinfoMinimal.txt
** Description changed: Problem: Internal speakers not working on Ubuntu 26.04 LTS I am using an Acer Swift Neo SFN14-56 laptop with an Intel Core Ultra 5 226V processor. My laptop has a dual-boot configuration with Ubuntu 26.04 LTS and Windows 11. The internal speakers work perfectly in Windows 11 on the same laptop, but they do not produce any sound in Ubuntu 26.04 LTS. Hardware and software information Laptop model: Acer SFN14-56 Processor: Intel Core Ultra 5 226V Operating system: Ubuntu 26.04 LTS Kernel version: 7.0.0-38-generic Audio controller: Intel Lunar Lake-M HD Audio Controller [8086] Active kernel driver: sof-audio-pci-intel-lnl Observed behavior The internal speakers may appear in the graphical audio settings, but no sound is produced. The command aplay -l lists only HDMI playback devices. No internal-speaker playback device is available. Relevant kernel log messages The kernel log contains the following messages: No SoundWire machine driver found for the ACPI-reported configuration part id 0x6244 is not supported using HDA machine driver skl_hda_dsp_generic now The SOF firmware loads and boots successfully. However, the internal audio playback device is not detected. I also checked for the kernel module snd_soc_sn624x_sdca_sdw, but it is not present in my installed kernel. Steps to reproduce Boot Ubuntu 26.04 LTS on the Acer SFN14-56. Open the audio settings and select the internal speakers if they are listed. Play any audio file. Observe that no sound comes from the internal speakers. Run aplay -l and observe that only HDMI playback devices are listed. Expected behavior The internal speakers should be detected correctly and produce sound in Ubuntu, as they do in Windows 11 on the same laptop. Actual behavior The internal speakers do not work in Ubuntu 26.04 LTS, and ALSA lists only HDMI playback devices. Request for investigation Please investigate the Intel Lunar Lake audio driver, support for the SoundWire codec with part ID 0x6244, and the appropriate machine-driver configuration for the Acer SFN14-56. Since the speakers work correctly in Windows 11, I would appreciate help identifying and resolving the Linux audio compatibility issue. --- ProblemType: Bug ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 3530 F.... wireplumber /dev/snd/seq: ubuntu 3514 F.... pipewire CasperMD5CheckResult: pass CasperVersion: 26.04.2 CloudArchitecture: x86_64 CloudID: nocloud CloudName: unknown CloudPlatform: nocloud CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud) CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 26.04 LiveMediaBuild: Ubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64 (20260826) MachineType: Acer SFN14-56 NonfreeKernelModules: zfs Package: alsa-driver (not installed) ProcEnviron: LANG=C.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcVersionSignature: Ubuntu 7.0.0-30.30-generic 7.0.12 Tags: resolute wayland-session Uname: Linux 7.0.0-30-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users _MarkForUpload: True dmi.bios.date: 09/23/2026 dmi.bios.release: 5.32 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: BM_BI_LNL336_IN008A_Q dmi.board.asset.tag: Default string dmi.board.name: SFN14-56 dmi.board.vendor: Acer dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 10 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.ec.firmware.release: 1.11 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrBM_BI_LNL336_IN008A_Q:bd09/23/2026:br5.32:efr1.11:svnAcer:pnSFN14-56:pvrDefaultstring:rvnAcer:rnSFN14-56:rvrDefaultstring:cvnDefaultstring:ct10:cvrDefaultstring:sku0000000000000000:pfaSwiftNeo: dmi.product.family: Swift Neo dmi.product.name: SFN14-56 dmi.product.sku: 0000000000000000 dmi.product.version: Default string dmi.sys.vendor: Acer + --- + ProblemType: Bug + ApportVersion: 2.34.1-0ubuntu0.1 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: ubuntu 3530 F.... wireplumber + /dev/snd/seq: ubuntu 3514 F.... pipewire + CasperMD5CheckResult: pass + CasperVersion: 26.04.2 + CloudArchitecture: x86_64 + CloudID: nocloud + CloudName: unknown + CloudPlatform: nocloud + CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud) + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 26.04 + LiveMediaBuild: Ubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64 (20260826) + MachineType: Acer SFN14-56 + NonfreeKernelModules: zfs + Package: alsa-driver (not installed) + ProcEnviron: + LANG=C.UTF-8 + PATH=(custom, no user) + SHELL=/bin/bash + TERM=xterm-256color + XDG_RUNTIME_DIR=<set> + ProcVersionSignature: Ubuntu 7.0.0-30.30-generic 7.0.12 + Tags: resolute wayland-session + Uname: Linux 7.0.0-30-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo users + _MarkForUpload: True + dmi.bios.date: 09/23/2026 + dmi.bios.release: 5.32 + dmi.bios.vendor: American Megatrends International, LLC. + dmi.bios.version: BM_BI_LNL336_IN008A_Q + dmi.board.asset.tag: Default string + dmi.board.name: SFN14-56 + dmi.board.vendor: Acer + dmi.board.version: Default string + dmi.chassis.asset.tag: Default string + dmi.chassis.type: 10 + dmi.chassis.vendor: Default string + dmi.chassis.version: Default string + dmi.ec.firmware.release: 1.11 + dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrBM_BI_LNL336_IN008A_Q:bd09/23/2026:br5.32:efr1.11:svnAcer:pnSFN14-56:pvrDefaultstring:rvnAcer:rnSFN14-56:rvrDefaultstring:cvnDefaultstring:ct10:cvrDefaultstring:sku0000000000000000:pfaSwiftNeo: + dmi.product.family: Swift Neo + dmi.product.name: SFN14-56 + dmi.product.sku: 0000000000000000 + dmi.product.version: Default string + dmi.sys.vendor: Acer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2172152 Title: Internal speakers not working on Acer SFN14-56 with Intel Core Ultra 5 226V on Ubuntu 26.04 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2172152/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
