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[Bug 1525554] Re: [HP ProBook 470 G3, Intel Skylake HDMI, Digital Out, HDMI] No sound at all


before i saw this bug thread i found another ( http://askubuntu.com/questions/700167/no-sound-on-ubuntu-15-10 ) thread where i realized you only need to add two lines to the config:
options snd-hda-intel single_cmd=1
options snd-hda-intel probe_mask=1

with these lines a was able to get sound, but i then have these crazy
noises while booting.

i just post some lines from the terminal which might help:

uname -a
Linux 15 4.2.0-27-generic #32-Ubuntu SMP Fri Jan 22 04:49:08 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

lspci -v | grep -A7 -i "audio"
00:1f.3 Multimedia audio controller: Intel Corporation Device 9d70 (rev 21)
	Subsystem: Hewlett-Packard Company Device 8100
	Flags: bus master, fast devsel, latency 64, IRQ 16
	Memory at c1320000 (64-bit, non-prefetchable) [size=16K]
	Memory at c1310000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

lsmod | grep snd
snd_hda_codec_hdmi     49152  1
snd_hda_intel          36864  2
snd_hda_codec         135168  2 snd_hda_codec_hdmi,snd_hda_intel
snd_hda_core           65536  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_hwdep              16384  1 snd_hda_codec
snd_pcm               106496  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
snd_seq_midi           16384  0
snd_seq_midi_event     16384  1 snd_seq_midi
snd_rawmidi            32768  1 snd_seq_midi
snd_seq                69632  2 snd_seq_midi_event,snd_seq_midi
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              32768  2 snd_pcm,snd_seq
snd                    81920  13 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device
soundcore              16384  1 snd

cat /proc/asound/cards
 0 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xc1320000 irq 129

even adding the right driver and module into /etc/modules (like snd-hda-
intel model=PCH index=0) did not work, like i found in this thread (
https://wiki.ubuntuusers.de/Soundkarten_konfigurieren/ ) sorry for the
german thread.

i dont know what to add anymore. feel free to ask.

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  [HP ProBook 470 G3, Intel Skylake HDMI, Digital Out, HDMI] No sound at

Status in alsa-driver package in Ubuntu:
Status in linux package in Ubuntu:

Bug description:
  No sound on brand new HP ProBook 470 G3 after installing Ubuntu 14.04
  on headphones or internal speakers.

  Connecting a USB headphone and microphone both work, though.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.19.0-39.44~14.04.1-generic 3.19.8-ckt9
  Uname: Linux 3.19.0-39-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
   /dev/snd/controlC0:  ronald     2199 F.... pulseaudio
                        ronald     2513 F.... alsamixer
  CurrentDesktop: Unity
  Date: Sat Dec 12 19:36:01 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-12-07 (5 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
   Error: command ['pkexec', 'fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 127: Error executing command as another user: Not authorized
   This incident has been reported.
  Symptom_Jack: Digital Out, HDMI
  Symptom_Type: No sound at all
  Title: [HP ProBook 470 G3, Intel Skylake HDMI, Digital Out, HDMI] No sound at all
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/30/2015
  dmi.bios.vendor: HP
  dmi.bios.version: N78 Ver. 01.02
  dmi.board.name: 8102
  dmi.board.vendor: HP
  dmi.board.version: KBC Version 16.1F
  dmi.chassis.asset.tag: 5CD54286XY
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.modalias: dmi:bvnHP:bvrN78Ver.01.02:bd09/30/2015:svnHP:pnHPProBook470G3:pvr:rvnHP:rn8102:rvrKBCVersion16.1F:cvnHP:ct10:cvr:
  dmi.product.name: HP ProBook 470 G3
  dmi.sys.vendor: HP

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