@David Henningsson If it's not necessary to join the upstream discussion I'd like to stay over here if you don't mind.
After putting down that initial click noise I discovered a new one and that's why the solution avoids two sorts of click noise. Both had been appearing within the transition to D0. The first one (the initial click noise) was caused by the eapd workaround - not powering down the speaker 0x10 widget within the transition to D3. The second one is quite soft and that's why I didn't noticed it before. It was caused by the small transition time to power up the AFG. It had been appearing at the same time as the initial click noise as well as after the reboot (when on battery power). I read the hda specification and successfully tried to use 75ms delay according to hda specification - "It is permissible for the audio fidelity for analog outputs to be slightly degraded if audio rendering begins immediately once the fully operational state is entered. However, audio fidelity must not be degraded 75ms after the transitioning to D0 state." Now there is no click noise with one exception - when I try to record from D3 state there is a recorded click. I tried to avoid that recorded click but the solution is in extending the time to power up the AFG up to 300ms instead of 75ms. But I think it's too long because the start of sound output is lagging. What do you think about it? Commentary: the source is from dkms-hda_0.201212172004~quantal1 --------------------------- patch_conexant.c --------------------------- + * Copyright (c) 2006 Pototskiy Alex <alex.potots...@gmail.com> just a typo + snd_hda_codec_set_power_to_all(codec, fg, power_state, false); when transitioning to D3 set eapd_workaround to false because we need to power down the widget - Speaker 0x10, if it's not set it causes the initial click noise + msleep(75); time to power up the AFG to avoid the soft click noise + .set_power_state = conexant_set_power, use conexant power settings for auto model ---------------------- hda_codec.c ---------------------- + hda_set_power_state(codec, AC_PWRST_D0); (when on battery power) power up the AFG to avoid the soft click noise when rebooting Would you rewrite it into the "upstream style"? Thank you. ** Patch added: "patch against dkms-hda_0.201212172004~quantal1" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/886975/+attachment/3464795/+files/lenovo-conexant.patch -- 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/886975 Title: [Thinkpad R61i/T61] Lenovo sound chip Conexant CX20549 Venice doesn't work correctly. Status in “alsa-driver” package in Ubuntu: Incomplete Bug description: Computer: IBM Lenovo Thinkpad R61i Card: HDA Intel Sound chip: Conexant CX20549 (Venice) Device: 00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 03) Subsystem: Lenovo ThinkPad T61 [17aa:20ac] System: Ubuntu Oneiric 11.10 (desktop-i386) Kernel: 3.0.0-12-generic-pae#20-Ubuntu SMP Fri Oct 7 16:37:17 UTC 2011 Problems: 1) Integrated microphone doesn't work at all because the driver uses node 0x14 instead of 0x15 for integrated mic and node 0x12 instead of 0x14 for external mic. 2) Sound output is muted in the "0% <-> unamplified" part of the volume slider and is working in the "unamplified <-> 100% ->" part only; the driver doesn't allow amplified part because sound is distorted over 0dB of the PCM level so there is no need amplified part of the volume slider. Solution: Attached patch is fixing nodes of integrated and external microphone and is removing the amplified part of the volume slider. --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu4 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: c4pp4 1698 F.... pulseaudio /dev/snd/pcmC0D0p: c4pp4 1698 F...m pulseaudio CRDA: Error: [Errno 2] Adresář nebo soubor neexistuje Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfe100000 irq 48' Mixer name : 'Conexant CX20549 (Venice)' Components : 'HDA:14f15045,17aa20db,00100100' Controls : 19 Simple ctrls : 10 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7KHT24WW-1.08' Mixer name : 'ThinkPad EC 7KHT24WW-1.08' Components : '' Controls : 1 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] DistroRelease: Ubuntu 11.10 HibernationDevice: RESUME=UUID=6e091b39-d59a-4d75-a7c5-dec246d020e5 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) MachineType: LENOVO 89329ZG Package: linux (not installed) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic-pae root=UUID=666241df-0a9e-4711-a44e-92d2e6f5eccc ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic-pae 3.0.4 RelatedPackageVersions: linux-restricted-modules-3.0.0-12-generic-pae N/A linux-backports-modules-3.0.0-12-generic-pae N/A linux-firmware 1.60 Tags: oneiric Uname: Linux 3.0.0-12-generic-pae i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers dmi.bios.date: 04/09/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 7OETC4WW (2.24 ) dmi.board.name: 89329ZG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr7OETC4WW(2.24):bd04/09/2010:svnLENOVO:pn89329ZG:pvrThinkPadR61/R61i:rvnLENOVO:rn89329ZG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 89329ZG dmi.product.version: ThinkPad R61/R61i dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/886975/+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
