When problem happens, please run each group of SET_COEF_INDEX and SET_PROC_COEF, then test if the audio changes normal or not: sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x78 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x003e // test if audio changes normal or not sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x77 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x0015 // test if audio changes normal or not sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x67 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0xf000 //... sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x3b sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x60d9
sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x33 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x8580 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x1b sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x0a6b sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x1a sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x8003 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x0f sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x02a2 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x0e sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x65c0 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x08 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x4ab7 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x06 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x6115 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1925057 Title: [82A1, Realtek ALC287, Speaker, Internal] Underruns, dropouts or crackling sound Status in alsa-driver package in Ubuntu: New Bug description: Hello, I'm using Ubuntu together with Windows on my laptop. If I boot in Ubuntu after Windows sound doesn't work well (instead of system sounds I can hear only shot noise). To fix the issue I need to completely shut down the system (call Power Off via Ubuntu GUI) and then boot again in Ubuntu. Please note, that reboot (called via Ubuntu GUI) doesn't help to fix the issue. Expected result: sound works well regardless of boot history. Actual result: every time I boot in Ubuntu after Windows sound doesn't work. Issue occurrence: 100%. Environment: $ lsb_release -rd Description: Ubuntu Hirsute Hippo (development branch) Release: 21.04 $ uname -a Linux tiptop 5.11.0-16-generic #17-Ubuntu SMP Wed Apr 14 20:12:43 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux Thank you in advance! ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: alsa-base 1.0.25+dfsg-0ubuntu7 ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12 Uname: Linux 5.11.0-16-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu65 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gluttton 1640 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Mon Apr 19 19:37:56 2021 InstallationDate: Installed on 2021-03-06 (43 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:sofhdadsp failed Symptom_Card: Smart Sound Technology Audio Controller - sof-hda-dsp Symptom_Jack: Speaker, Internal Symptom_PulseAudioLog: кві 19 19:37:21 tiptop pulseaudio[958]: After module unload, module 'module-null-sink' was still loaded! кві 19 19:37:21 tiptop systemd[944]: pulseaudio.service: Succeeded. кві 19 19:37:40 tiptop systemd[944]: pulseaudio.service: Succeeded. кві 19 19:37:50 tiptop systemd[944]: pulseaudio.socket: Succeeded. Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [82A1, Realtek ALC287, Speaker, Internal] Underruns, dropouts or crackling sound UpgradeStatus: Upgraded to hirsute on 2021-03-06 (43 days ago) dmi.bios.date: 01/14/2021 dmi.bios.release: 1.31 dmi.bios.vendor: LENOVO dmi.bios.version: DHCN31WW dmi.board.asset.tag: ��������������� dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40688 WIN dmi.chassis.asset.tag: ��������������� dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Yoga Slim 7 14IIL05 dmi.ec.firmware.release: 1.29 dmi.modalias: dmi:bvnLENOVO:bvrDHCN31WW:bd01/14/2021:br1.31:efr1.29:svnLENOVO:pn82A1:pvrYogaSlim714IIL05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40688WIN:cvnLENOVO:ct10:cvrYogaSlim714IIL05: dmi.product.family: Yoga Slim 7 14IIL05 dmi.product.name: 82A1 dmi.product.sku: LENOVO_MT_82A1_BU_idea_FM_Yoga Slim 7 14IIL05 dmi.product.version: Yoga Slim 7 14IIL05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1925057/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
