I confirm the strong noise issue described by ArnauC. I have Ubuntu 15.10 with kernel 4.2.0-25-generic on HP ProBook G3 installed. I have executed alsa setup earlier and it worked sometimes. Adding the lines proposed by Andy fixed the sound issue even after reboot. Although the strong noise issue arose.
Actually, it did happen SOMETIMES even earlier, when I tried for use the alsa force, but now it's 100% reproducible. Also I wanna mention, that this sound appears even before I select the OS to boot, so it must be some bios configuration problem or whatever. I tried googling it, but did not succeed at all. How can I help in the bug investigation? I tried running ubuntu-bug audio, it starts playing beeps through my speakers. First time it goes well, but the second time it hangs forever. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1525554 Title: [HP ProBook 470 G3, Intel Skylake HDMI, Digital Out, HDMI] No sound at all Status in alsa-driver package in Ubuntu: Incomplete Status in linux package in Ubuntu: Incomplete 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 AudioDevicesInUse: USER PID ACCESS COMMAND /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 Symptom_DevicesInUse: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1525554/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
