Public bug reported: Ubuntu 25.10 (Questing Quetzal), kernel 6.14.0-1020-oem. No audio on ThinkPad X1 Carbon Gen 13 (Intel Lunar Lake) - firmware-sof-signed ships broken topology
Ubuntu release: Description: Ubuntu 25.10 Release: 25.10 Package versions: firmware-sof-signed: 2025.05.1-1ubuntu0.1 alsa-ucm-conf: 1.2.12-1ubuntu2.4 linux-oem-6.14: 6.14.0-1020.20 What I expected to happen: Audio to work out of the box on a ThinkPad X1 Carbon Gen 13 (Intel Lunar Lake-M, RT713 + RT1318 SoundWire codecs). Built-in speakers, headphone jack, and microphones should appear as usable devices in PipeWire. What happened instead: PipeWire shows only "Dummy Output". No sinks or sources available. The SOF DSP panics on every pipeline creation attempt because the topology file sof-lnl-rt713-l0-rt1318-l1-2ch.tplg shipped in firmware-sof-signed 2025.05.1 references a drc.21.1 (Dynamic Range Compressor) DSP module that the Lunar Lake firmware cannot instantiate. Kernel messages: sof-audio-pci-intel-lnl 0000:00:1f.3: FW reported error: 104 - Other failure of module instance initialization request sof-audio-pci-intel-lnl 0000:00:1f.3: failed to create module drc.21.1 sof-audio-pci-intel-lnl 0000:00:1f.3: DSP panic! This affects any Lunar Lake laptop with RT713 + RT1318 SoundWire codecs. The drc module was introduced in SOF topology v2.12; versions v2.11 and earlier do not have it and work correctly. Workaround: replace the shipped topology with the v2.11.3 build from https://github.com/thesofproject/sof-bin: cd /tmp git clone --depth=1 https://github.com/thesofproject/sof-bin.git zstd /tmp/sof-bin/v2.11.x/sof-ipc4-tplg-v2.11.3/sof-lnl-rt713-l0-rt1318-l1-2ch.tplg -o /tmp/sof-lnl-rt713-l0-rt1318-l1-2ch-v2.11.tplg.zst sudo cp /tmp/sof-lnl-rt713-l0-rt1318-l1-2ch-v2.11.tplg.zst /usr/lib/firmware/updates/intel/sof-ipc4-tplg/sof-lnl-rt713-l0-rt1318-l1-2ch.tplg.zst sudo update-initramfs -u sudo reboot Expected fix: ship a firmware-sof-signed version where the Lunar Lake firmware can actually instantiate the drc module, or revert the topology to not require it. ProblemType: Bug DistroRelease: Ubuntu 25.10 Package: firmware-sof-signed 2025.05.1-1ubuntu0.1 [modified: usr/lib/firmware/intel/sof-ipc4/lnl/community/sof-lnl.ri.zst] ProcVersionSignature: Ubuntu 6.14.0-1020.20-oem 6.14.11 Uname: Linux 6.14.0-1020-oem x86_64 ApportVersion: 2.33.1-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: sway Date: Tue Oct 6 22:23:40 2026 InstallationDate: Installed on 2025-11-27 (313 days ago) InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827.1) PackageArchitecture: all ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/usr/bin/zsh TERM=alacritty XDG_RUNTIME_DIR=<set> SourcePackage: firmware-sof UpgradeStatus: Upgraded to questing on 2026-02-09 (239 days ago) ** Affects: firmware-sof (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug questing wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2169757 Title: Intel Lunar Lake no audio on Ubuntu 25.10 - ThinkPad X1 Carbon Gen 13 (21NS) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firmware-sof/+bug/2169757/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
