Public bug reported: My sound codec is alc1150, I installed ubuntu 14.04 and updated my kernel to 3.17.0-031700-generic, I plugged into my headphone into rear red jack and I got extremely low volume despite I set max volume with slider, so is green front Headphone jack. I dumpped the sound codec and found they are all EAPD node. I also get some skipping and distorted issue earlier, but now only low volume issue.
ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 Uname: Linux 3.17.0-031700-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: austin 1860 F.... pulseaudio /dev/snd/controlC0: austin 1860 F.... pulseaudio CurrentDesktop: XFCE Date: Fri Oct 10 20:12:39 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-08-15 (56 days ago) InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723) 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_Jack: Red Line Out, Rear Symptom_Type: High background noise, or volume is too low Title: [MS-7918, Realtek ALC1150, Red Line Out, Rear] Background noise or low volume UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/24/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V2.3 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z97 GAMING 3 (MS-7918) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV2.3:bd07/24/2014:svnMSI:pnMS-7918:pvr1.0:rvnMSI:rnZ97GAMING3(MS-7918):rvr1.0:cvnMSI:ct3:cvr1.0: dmi.product.name: MS-7918 dmi.product.version: 1.0 dmi.sys.vendor: MSI ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1379773 Title: Extremely low volume from HP and line-out with EAPD function To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1379773/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs