Same here on a XPS 15 9550 running ubuntu 16.10. This issue occurs randomly at boot for a while now (6 months+).
Sometimes multiple reboot are needed to get the headphone to work. I tried rebooting alsa or pulse audio and other tricks like alsamixer. But somehow, I found out that suspend/resume fix it everytime... (Side note, suspend/resume breaks my wifi so need to restart NetworkManager service, but that is another issue) I wonder what the suspend/resume process does to have this fix every time... -- 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/1583801 Title: No sound via headphones (headset) when Ubuntu boots with them plugged in Status in alsa-driver package in Ubuntu: Confirmed Bug description: The bug is twofold, first when computer boots if the headset (headphones with built-in mic, one audio jack) is plugged in, then there is no sound (via headphones or otherwise). If you plug headphones out and back in, then it usually works as expected. The second scenario is the same, except that plugging out and back in again doesn't help. In that case, I just restart the laptop, then plug them back in again and it works. In all cases, microphone works. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 NonfreeKernelModules: nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: crunch 3248 F.... pulseaudio CurrentDesktop: Unity Date: Thu May 19 22:13:20 2016 InstallationDate: Installed on 2016-05-07 (12 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) 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: crunch 3248 F.... pulseaudio Symptom_Jack: Black Headphone Out, Left Symptom_Type: No sound at all Title: [XPS 15 9550, Realtek ALC3266, Black Headphone Out, Left] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/07/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 01.02.00 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd04/07/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1583801/+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
