With those commits cherry-picked on top of the current sound subsystem tree (aside from 65263bf16116 and 3f89e62cf14c, which both revert changes that are not in that tree), it works. The option for SOF support on Broadwell gets deselected automatically during the build, because the legacy driver is selected.
One note about the help text added to Kconfig: see https://github.com/thesofproject/linux/pull/1382#pullrequestreview-309637829 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1846539 Title: [broadwell-rt286, playback] Since Linux 5.2rc2 audio playback no longer works on Dell Venue 11 Pro 7140 Status in Linux: Confirmed Status in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: Hello! I noticed that since Linux 5.2rc2 audio playback no longer works on Dell Venue 11 Pro 7140 (Intel Core M-5Y71; rt286). Turns out that happened because SND_SOC_SOF_BROADWELL_SUPPORT was enabled in kernel binary builds since 5.2rc2: https://kernel.ubuntu.com/~kernel- ppa/mainline/v5.2-rc2/ To verify this assumption I tested two builds of Linux 5.3.1. 1. Build with enabled SND_SOC_SOF_BROADWELL_SUPPORT from https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.3.1/ Audio playback doesn't work, dmesg: [ 4.072800] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 4.212606] broadwell-audio broadwell-audio: ASoC: failed to init link System PCM: -517 [ 4.238009] broadwell-audio broadwell-audio: ASoC: failed to init link System PCM: -517 [ 4.294920] broadwell-audio broadwell-audio: ASoC: failed to init link System PCM: -517 [ 4.407351] broadwell-audio broadwell-audio: ASoC: failed to init link System PCM: -517 [ 4.428922] broadwell-audio broadwell-audio: ASoC: failed to init link System PCM: -517 [ 4.458926] broadwell-audio broadwell-audio: ASoC: failed to init link System PCM: -517 [ 4.472113] haswell-pcm-audio haswell-pcm-audio: Direct firmware load for intel/IntcPP01.bin failed with error -2 [ 4.472118] haswell-pcm-audio haswell-pcm-audio: fw image intel/IntcPP01.bin not available(-2) [ 4.472735] haswell-pcm-audio haswell-pcm-audio: FW loaded, mailbox readback FW info: type 01, - version: 00.00, build 77, source commit id: 876ac6906f31a43b6772b23c7c983ce9dcb18a19 [ 4.474607] broadwell-audio broadwell-audio: snd-soc-dummy-dai <-> System Pin mapping ok [ 4.474676] broadwell-audio broadwell-audio: snd-soc-dummy-dai <-> Offload0 Pin mapping ok [ 4.474741] broadwell-audio broadwell-audio: snd-soc-dummy-dai <-> Offload1 Pin mapping ok [ 4.474807] broadwell-audio broadwell-audio: snd-soc-dummy-dai <-> Loopback Pin mapping ok [ 4.476377] broadwell-audio broadwell-audio: rt286-aif1 <-> snd-soc-dummy-dai mapping ok [ 4.480344] input: broadwell-rt286 Headset as /devices/pci0000:00/INT3438:00/broadwell-audio/sound/card1/input14 [ 7.892659] haswell-pcm-audio haswell-pcm-audio: error: message type 7 header 0x87000000 [ 13.015379] haswell-pcm-audio haswell-pcm-audio: error: reset stream 2 still running [ 13.127262] haswell-pcm-audio haswell-pcm-audio: error: reset stream 0 still running [ 19.623436] haswell-pcm-audio haswell-pcm-audio: ipc: --message timeout-- ipcx 0x86120000 isr 0x00000000 ipcd 0x47000000 imrx 0x7fff0000 [ 19.623446] haswell-pcm-audio haswell-pcm-audio: ipc: error set dx state 3 faile 2. Build with disabled SND_SOC_SOF_BROADWELL_SUPPORT. Audio playback works, dmesg: [ 4.839028] haswell-pcm-audio haswell-pcm-audio: Direct firmware load for intel/IntcPP01.bin failed with error -2 [ 4.839034] haswell-pcm-audio haswell-pcm-audio: fw image intel/IntcPP01.bin not available(-2) [ 4.839644] haswell-pcm-audio haswell-pcm-audio: FW loaded, mailbox readback FW info: type 01, - version: 00.00, build 77, source commit id: 876ac6906f31a43b6772b23c7c983ce9dcb18a19 [ 4.851204] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 4.907386] broadwell-audio broadwell-audio: snd-soc-dummy-dai <-> System Pin mapping ok [ 4.907475] broadwell-audio broadwell-audio: snd-soc-dummy-dai <-> Offload0 Pin mapping ok [ 4.909831] broadwell-audio broadwell-audio: snd-soc-dummy-dai <-> Offload1 Pin mapping ok [ 4.909931] broadwell-audio broadwell-audio: snd-soc-dummy-dai <-> Loopback Pin mapping ok [ 4.912149] broadwell-audio broadwell-audio: rt286-aif1 <-> snd-soc-dummy-dai mapping ok [ 4.929629] input: broadwell-rt286 Headset as /devices/pci0000:00/INT3438:00/broadwell-audio/sound/card1/input14 ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 5.3.0-13.14-generic 5.3.0 Uname: Linux 5.3.0-13-generic x86_64 ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: irina 818 F.... pulseaudio /dev/snd/controlC0: irina 818 F.... pulseaudio CurrentDesktop: GNOME Date: Fri Oct 4 01:22:54 2019 InstallationDate: Installed on 2019-02-12 (233 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_RU.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:broadwellrt286 failed Symptom_AlsaPlaybackTestStderr: W r i t e e r r o r : - 5 , I n p u t / o u t p u t e r r o r x r u n _ r e c o v e r y f a i l e d : - 5 , I n p u t / o u t p u t e r r o r T r a n s f e r f a i l e d : I n p u t / o u t p u t e r r o r Symptom_Card: Встроенное аудио - broadwell-rt286 Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: irina 818 F.... pulseaudio /dev/snd/controlC0: irina 818 F.... pulseaudio Symptom_Type: No sound at all Title: [broadwell-rt286 - broadwell-rt286, playback] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/21/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: A19 dmi.board.name: 0VYPC7 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA19:bd06/21/2019:svnDellInc.:pnVenue11Pro7140:pvr:rvnDellInc.:rn0VYPC7:rvrA00:cvnDellInc.:ct8:cvr: dmi.product.name: Venue 11 Pro 7140 dmi.product.sku: 066B dmi.sys.vendor: Dell Inc. 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