Hello, On Ubuntu 13.10 (fresh install not upgrade) I observed that subwoofer yielded no sound. So I tested two fixes separately, changes from vanilla configuration are indicated with "-->".
1. Post #8: Setting the pin configuration default to 0x99130112 for pin 0x16 --> Subwoofer plays sound, high frequencies included --> Muting right channel at source mutes subwoofer, muting left channel at source does not affect subwoofer --> alsamixer shows a "bass" volume control that affects subwoofer --> alsamixer master volume affects all channels as expected --> interference noise in subwoofer, not very loud but clearly audible when ear close to subwoofer 2. Post #34: edit /etc/modprobe.d/alsa-base.conf and add this line: options snd-hda-intel model=asus-mode4 --> Same consequences (not tested volume details though) Interference noise in subwoofer only happens when enabling one of those fixes. Disappears immediately when doing rmmod snd-hda-intel. Close attention to this noise, revealed that some noise remains even after rmmod snd-hda-intel, but it's more subtle because more or less the same power as the PC fan noise. As expected, unplugging the subwoofer from the jack removes that noise. Keeping in mind the usual "hey it's open source, it's done when someone does it philosophy, why is this bug/feature not addressed ? Because wiring is non-standard ? Because it's difficult to implement an auto-detect + jack sense feature that just works ? Because no one really cares (IMHO sound is not that good anyway, any decent external stereo will do much better, so I consider myself in the "not really cares" option) ? Just my two cents. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/871808 Title: Asus N55SF/N75SF - External subwoofer not working Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: Asus N55SF laptop with external subwoofer wich connects to dedicated 2.5mm plug. http://www.asus.com/Notebooks/Multimedia_Entertainment/N55SF/ In Windows it works fine but in Ubuntu it not works at all (see Ubuntu Question and Answers #173797 - https://answers.launchpad.net/ubuntu/+question/173797 ) ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: pulseaudio 1:1.0-0ubuntu3 ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu2 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC663 Analog [ALC663 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: denis 1957 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xdf000000 irq 51' Mixer name : 'Realtek ALC663' Components : 'HDA:10ec0663,10431b73,00100001' Controls : 23 Simple ctrls : 13 Date: Mon Oct 10 19:11:30 2011 ExecutablePath: /usr/bin/pulseaudio InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20111005) ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) LANG=en_AU.utf8 SHELL=/bin/bash SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/29/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: N55SF.207 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: N55SF dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN55SF.207:bd08/29/2011:svnASUSTeKComputerInc.:pnN55SF:pvr1.0:rvnASUSTeKComputerInc.:rnN55SF:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: N55SF dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. modified.conffile..etc.pulse.daemon.conf: [modified] mtime.conffile..etc.pulse.daemon.conf: 2011-10-07T16:17:51.250612 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/871808/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
