Public bug reported: I recently bought a GenesisIV from pcspecialist.co.uk. It is a re-badged Clevo W250ENQ.
The sub-woofer functions fine in Windows (which I have since removed), but doesn't work in Ubuntu. speaker-test produces pink noise for the left and right channel, but nothing for LFE (the sub-woofer). There's a greyed-out sub-woofer volume slider in the pulseaudio widget (see attachment), but I think this might be a red herring. I've tried adjusting/unmuting all the channels in alsamixer, but doesn't seem to do anything. The module I'm using is snd-hda-intel and the codec is VIA VT1802. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: alsa-base 1.0.25+dfsg-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7 Uname: Linux 3.5.0-18-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jamie 1578 F.... pulseaudio Date: Tue Nov 20 19:23:36 2012 InstallationDate: Installed on 2012-11-20 (0 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MarkForUpload: True PackageArchitecture: all ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Speaker, Internal Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: Only some of outputs are working Title: [W250ENQ / W270ENQ, VIA VT1802, Speaker, Internal] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/01/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: W250ENQ / W270ENQ dmi.board.vendor: CLEVO CO. dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd06/01/2012:svnCLEVOCO.:pnW250ENQ/W270ENQ:pvrNotApplicable:rvnCLEVOCO.:rnW250ENQ/W270ENQ:rvrNotApplicable:cvnNoEnclosure:ct9:cvrN/A: dmi.product.name: W250ENQ / W270ENQ dmi.product.version: Not Applicable dmi.sys.vendor: CLEVO CO. ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug quantal running-unity ** Attachment added: "Screenshot of pulseaudio subwoofer option" https://bugs.launchpad.net/bugs/1081263/+attachment/3439694/+files/Screenshot%20from%202012-11-20%2013%3A09%3A33.png -- 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/1081263 Title: [W250ENQ / W270ENQ, VIA VT1802, Speaker, Internal] Internal sub-woofer does not work Status in “alsa-driver” package in Ubuntu: New Bug description: I recently bought a GenesisIV from pcspecialist.co.uk. It is a re- badged Clevo W250ENQ. The sub-woofer functions fine in Windows (which I have since removed), but doesn't work in Ubuntu. speaker-test produces pink noise for the left and right channel, but nothing for LFE (the sub-woofer). There's a greyed-out sub-woofer volume slider in the pulseaudio widget (see attachment), but I think this might be a red herring. I've tried adjusting/unmuting all the channels in alsamixer, but doesn't seem to do anything. The module I'm using is snd-hda-intel and the codec is VIA VT1802. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: alsa-base 1.0.25+dfsg-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7 Uname: Linux 3.5.0-18-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jamie 1578 F.... pulseaudio Date: Tue Nov 20 19:23:36 2012 InstallationDate: Installed on 2012-11-20 (0 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MarkForUpload: True PackageArchitecture: all ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Speaker, Internal Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: Only some of outputs are working Title: [W250ENQ / W270ENQ, VIA VT1802, Speaker, Internal] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/01/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: W250ENQ / W270ENQ dmi.board.vendor: CLEVO CO. dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd06/01/2012:svnCLEVOCO.:pnW250ENQ/W270ENQ:pvrNotApplicable:rvnCLEVOCO.:rnW250ENQ/W270ENQ:rvrNotApplicable:cvnNoEnclosure:ct9:cvrN/A: dmi.product.name: W250ENQ / W270ENQ dmi.product.version: Not Applicable dmi.sys.vendor: CLEVO CO. 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