MASTER VOLUME REGISTER Index 0x02 This register controls the Line_Out volume controls for both stereo channels and the mute bit. Each volume subregister contains five bits, generating 32 volume levels with 31 steps of 1.5 dB each. Because AC ’97 defines 6-bit volume registers, to maintain compatibility whenever the D5 or D13 bits are set to 1, their respective lower five volume bits are automatically set to 1 by the codec logic. On readback, all lower five bits read 1s whenever these bits are set to 1. Refer to Table 12 for examples.
HEADPHONE VOLUME REGISTER Index 0x04 This register controls the headphone volume controls for both stereo channels and the mute bit. Each volume subregister contains five bits, generating 32 volume levels with 31 steps of 1.5 dB each. Because AC ’97 defines 6-bit volume registers, to maintain compatibility, whenever the D5 or D13 bits are set to 1, their respective lower five volume bits are automatically set to 1 by the codec logic. On readback, all lower five bits read 1s whenever these bits are set to 1. Refer to Table 12 for examples. this is quite different from those virtual master of hda codecs -- 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/893210 Title: [Dell OptiPlex GX620 - AD1981b, playback] No sound at all Status in ALSA driver: Confirmed Status in alsa-driver package in Ubuntu: Incomplete Bug description: fresh install of ubuntu studio and updates but internal speakers do not play. dell optiplex gx620 love ya ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: alsa-base 1.0.24+dfsg-0ubuntu2 ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6 Uname: Linux 3.0.0-13-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu4 Architecture: i386 Card0.Amixer.info: Card hw:0 'ICH7'/'Intel ICH7 with AD1981B at irq 23' Mixer name : 'Analog Devices AD1981B' Components : 'AC97a:41445374' Controls : 28 Simple ctrls : 20 Card1.Amixer.info: Card hw:1 'Device'/'C-Media Electronics Inc. USB Multimedia Audio Device at usb-0000:00:1d.7-4.1.4,' Mixer name : 'USB Mixer' Components : 'USB0d8c:0105' Controls : 13 Simple ctrls : 6 Date: Mon Nov 21 11:51:25 2011 InstallationMedia: Ubuntu-Studio 11.10 "Oneiric Ocelot" - Release i386 (20111011.1) PackageArchitecture: all ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:ICH7 failed Symptom_Card: CM108 Audio Controller - USB Multimedia Audio Device Symptom_Type: No sound at all Title: [ICH4 - Intel ICH7, playback] No sound at all UpgradeStatus: Upgraded to oneiric on 2011-11-12 (8 days ago) dmi.bios.date: 11/30/2006 dmi.bios.vendor: Dell Inc. dmi.bios.version: A11 dmi.board.name: 0F8101 dmi.board.vendor: Dell Inc. dmi.chassis.type: 15 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA11:bd11/30/2006:svnDellInc.:pnOptiPlexGX620:pvr:rvnDellInc.:rn0F8101:rvr:cvnDellInc.:ct15:cvr: dmi.product.name: OptiPlex GX620 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/893210/+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
