Public bug reported:
No sound at all, neither in headphones nor in speakers.
Have tried without success:
jack-retask
latest alsa drivers with DKMS
various options set in /etc/modprobe.d/alsa-base.conf
Codec seems to be supported:
grep "Codec:" /proc/asound/card*/codec*
/proc/asound/card0/codec#0:Codec: Conexant CX20753/4
/proc/asound/card0/codec#2:Codec: Intel Skylake HDMI
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CX20753/4 Analog [CX20753/4 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
dmesg |grep snd
[ 11.064507] snd_hda_intel 0000:00:1f.3: enabling device (0100 -> 0102)
[ 11.064628] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops
i915_audio_component_bind_ops [i915_bpo])
[ 11.407971] snd_hda_codec_conexant hdaudioC0D0: CX20753/4: BIOS auto-probing.
[ 11.408833] snd_hda_codec_conexant hdaudioC0D0: autoconfig for CX20753/4:
line_outs=1 (0x1d/0x0/0x0/0x0/0x0) type:speaker
[ 11.408835] snd_hda_codec_conexant hdaudioC0D0: speaker_outs=0
(0x0/0x0/0x0/0x0/0x0)
[ 11.408836] snd_hda_codec_conexant hdaudioC0D0: hp_outs=1
(0x16/0x0/0x0/0x0/0x0)
[ 11.408837] snd_hda_codec_conexant hdaudioC0D0: mono: mono_out=0x0
[ 11.408838] snd_hda_codec_conexant hdaudioC0D0: inputs:
[ 11.408839] snd_hda_codec_conexant hdaudioC0D0: Internal Mic=0x1a
[ 11.408840] snd_hda_codec_conexant hdaudioC0D0: Mic=0x19
[ 11.410066] snd_hda_codec_conexant hdaudioC0D0: Enable sync_write for stable
communication
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: claudia 4385 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Aug 19 22:42:59 2016
InstallationDate: Installed on 2016-02-18 (183 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: claudia 4385 F.... pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [27-p000na, Conexant CX20753/4, Speaker, Internal] No sound at all
UpgradeStatus: Upgraded to xenial on 2016-07-29 (21 days ago)
dmi.bios.date: 09/21/2015
dmi.bios.vendor: AMI
dmi.bios.version: A0.06
dmi.board.asset.tag: CZC60573R7
dmi.board.name: 2B3E
dmi.board.vendor: HP
dmi.board.version: 1.05
dmi.chassis.asset.tag: CZC60573R7
dmi.chassis.type: 13
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnAMI:bvrA0.06:bd09/21/2015:svnHP:pn27-p000na:pvr1.05:rvnHP:rn2B3E:rvr1.05:cvnHP:ct13:cvr:
dmi.product.name: 27-p000na
dmi.product.version: 1.05
dmi.sys.vendor: HP
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2016-08-15T16:23:23.818733
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug kernel-sound xenial
** Tags added: kernel-sound
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https://bugs.launchpad.net/bugs/1615138
Title:
[27-p000na, Conexant CX20753/4, Speaker, Internal] No sound at all
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