https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa /HD-Audio.txt
try specify hint by early patching inv_jack_detect=true -- 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/1515909 Title: [Macmini7,1, Cirrus Logic CS4208, Green Headphone Out, N/A] No sound at all Status in alsa-driver package in Ubuntu: Incomplete Bug description: The sound is played from the internal speaker only. Funny thing is that when I disconnect the jack the sound device in sound settings goes from Speakers to Headphones (which is the opposite) and the sound stops playing even from the internal speaker. It looks like the output switch is reverted to the jack indicator. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3 Uname: Linux 4.2.0-18-generic x86_64 ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: miro 2402 F.... pulseaudio /dev/snd/controlC1: miro 2402 F.... pulseaudio CurrentDesktop: Unity Date: Fri Nov 13 09:39:08 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-11-11 (1 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) 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: lightdm 1971 F.... pulseaudio miro 2402 F.... pulseaudio /dev/snd/controlC1: lightdm 1971 F.... pulseaudio miro 2402 F.... pulseaudio Symptom_Jack: Green Headphone Out, N/A Symptom_Type: No sound at all Title: [Macmini7,1, Cirrus Logic CS4208, Green Headphone Out, N/A] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/08/2015 dmi.bios.vendor: Apple Inc. dmi.bios.version: MM71.88Z.0220.B06.1509081252 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-35C5E08120C7EEAF dmi.board.vendor: Apple Inc. dmi.board.version: Macmini7,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-35C5E08120C7EEAF dmi.modalias: dmi:bvnAppleInc.:bvrMM71.88Z.0220.B06.1509081252:bd09/08/2015:svnAppleInc.:pnMacmini7,1:pvr1.0:rvnAppleInc.:rnMac-35C5E08120C7EEAF:rvrMacmini7,1:cvnAppleInc.:ct10:cvrMac-35C5E08120C7EEAF: dmi.product.name: Macmini7,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1515909/+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