Sound not working on HP x2 10-p030nl - Realtek rt5640

[Daniele Laudani]

Audio doesn't work on every kernel I tried. I also used this https://github.com/plbossart/UCM, but this results in a pulseaudio crash. See this for more information: https://github.com/plbossart/UCM/issues/27

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: pulseaudio 1:11.1-1ubuntu7
Uname: Linux 4.16.0-rc6+ x86_64
ApportVersion: 2.20.9-0ubuntu2
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/pcmC1D1p', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC1', '/dev/snd/by-path', '/dev/snd/pcmC0D2p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer', '/dev/sequencer2', '/dev/sequencer'] failed with exit code 1:
CurrentDesktop: KDE
Date: Tue Apr 3 19:19:35 2018
InstallationDate: Installed on 2018-03-27 (6 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180306.1)
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
SourcePackage: pulseaudio
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/25/2017
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F.30
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 827C
dmi.board.vendor: HP
dmi.board.version: 93.23
dmi.chassis.type: 32
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF.30:bd10/25/2017:svnHP:pnHPx2Detachable10-p0XX:pvr:rvnHP:rn827C:rvr93.23:cvnHP:ct32:cvrChassisVersion:
dmi.product.family: 103C_5335KV
dmi.product.name: HP x2 Detachable 10-p0XX
dmi.sys.vendor: HP

[Daniel van Vugt (vanvugt)]

This sounds like it might be a duplicate of bug 1720519. Please try the workaround in comment 4 here: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1720519/comments/4

[Daniele Laudani (dslul)]

I tried that workaround, but it didn't work. I also purged and reinstalled pulseaudio, still nothing.

[Daniele Laudani (dslul)]

Interestingly, even though pulseaudio doesn't start and no sound indicator appears on the system, if I start something using VLC, the audio works. No sound in the browser or system, only in VLC. I guess this is due to some bugs in pulseaudio, isn't it?

[Daniel van Vugt (vanvugt)]

If pulseaudio isn't running then that's the main issue. It's hard to declare a bug is in a program when that program isn't even running yet.

Please try:

1. Run 'journalctl -b > journal.txt' and attach the resulting file here.

2. Run 'pulseaudio -vv' and paste the output here.

[Daniele Laudani (dslul)]

I managed to get it to work.
Here is how:

copy these files as instructed in the README: https://github.com/plbossart/UCM/tree/master/bytcr-rt5640

Then, from the terminal:
pacmd set-source-port alsa_input.platform-bytcr_rt5640.HiFi__hw_bytcrrt5640__source
pacmd set-default-sink alsa_output.platform-bytcr_rt5640.HiFi__hw_bytcrrt5640__sink

[Daniel van Vugt (vanvugt)]

Interesting. That sounds like something we should be shipping with Ubuntu. But ideally it should come from upstream PulseAudio.

Please log a bug for the issue with the PulseAudio people so we can try and get the fix in a future version:

  https://bugs.freedesktop.org/enter_bug.cgi?product=PulseAudio

and then tell us the ID of that new bug.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]