@Kai-Heng, Thank you very much for your efforts here. I just wanted to provide a quick update...
Short version - I have been able to repeat the positive result using the updated kernel you provide on a fresh install of Ubuntu 20.04.1 (the recent point release). More detail - Since Ubuntu 20.04.1 was just released, I decided to completely erase the system once again and install Ubuntu 20.04.1 from the latest .ISO I performed the installation and then applied all of the software updates (there were not very many, which I understand is to be expected). While in this 'fresh' state, the audio output did not work (which again was expected). I followed the same procedure as I did before (as described in comment #60 --> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875199/comments/60) to install the updated kernel you provided in comment #59 --> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875199/comments/59 When I did so, as happened before all but one of the packages installed properly. I have provided the full text of the error in the attached file 'installation_log_ver2.txt' Despite this error, I rebooted the system. Upon rebooting, the system provides this output from running 'uname -a': Linux NUC8CCHK 5.4.0-42-generic #46-Ubuntu SMP Fri Jul 10 00:24:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux I make mention once again only because I am unsure if I did anything incorrectly, so I wanted to make you aware. That said, I did experience the same positive result in that audio output now works properly. Now when I access the 'Sound' settings, I now see a 'Line-out Built-in Audio' option under 'Output Device'. Prior to this the only option was a 'Dummy Output'. I can now successfully test the audio output from within the 'Sound' settings application (and I hear the female voice appropriately on both the right and left channel), and audio output works properly when playing back a YouTube video via Firefox. In summation, I was able to repeat the positive result using your updated kernel on a fresh install of Ubuntu 20.04.1 and audio output on this system works as expected. Despite this, I wanted to make you aware of the error I received during the installation on the off chance that would be of interest. I would like to thank you again for all of your help throughout the process, it is very much appreciated. Please let me know if I can provide any additional information regarding this issue and I will be happy to do so. ** Attachment added: "Installation_log_ver2.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875199/+attachment/5399884/+files/Installation_log_ver2.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1875199 Title: [NUC8CCHK][HDA-Intel - HDA Intel PCH, playback] No sound at all Status in linux package in Ubuntu: Incomplete Bug description: No sound output. Only a 'Dummy' audio output device is listed in the Gnome Sound application. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: pulseaudio 1:13.99.1-1ubuntu3 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rboerner 1205 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sun Apr 26 12:12:49 2020 InstallationDate: Installed on 2020-04-25 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: pulseaudio Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rboerner 1205 F.... pulseaudio Symptom_PulsePlaybackTest: PulseAudio playback test failed Symptom_Type: No sound at all Title: [HDA-Intel - HDA Intel PCH, playback] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/25/2020 dmi.bios.vendor: Intel Corp. dmi.bios.version: CHAPLCEL.0048.2020.0225.1640 dmi.board.name: NUC8CCHB dmi.board.vendor: Intel Corporation dmi.board.version: K44767-502 dmi.chassis.type: 35 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnIntelCorp.:bvrCHAPLCEL.0048.2020.0225.1640:bd02/25/2020:svnIntel(R)ClientSystems:pnNUC8CCHK:pvrK44798-502:rvnIntelCorporation:rnNUC8CCHB:rvrK44767-502:cvnIntelCorporation:ct35:cvr2.0: dmi.product.family: CH dmi.product.name: NUC8CCHK dmi.product.sku: BKNUC8CCHKR dmi.product.version: K44798-502 dmi.sys.vendor: Intel(R) Client Systems --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rboerner 1215 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-04-25 (6 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: Intel(R) Client Systems NUC8CCHK Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-28-generic root=UUID=afbb0f64-e729-46a8-82e4-a060e9e729c4 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30 RelatedPackageVersions: linux-restricted-modules-5.4.0-28-generic N/A linux-backports-modules-5.4.0-28-generic N/A linux-firmware 1.187 Tags: focal Uname: Linux 5.4.0-28-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 02/25/2020 dmi.bios.vendor: Intel Corp. dmi.bios.version: CHAPLCEL.0048.2020.0225.1640 dmi.board.name: NUC8CCHB dmi.board.vendor: Intel Corporation dmi.board.version: K44767-502 dmi.chassis.type: 35 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnIntelCorp.:bvrCHAPLCEL.0048.2020.0225.1640:bd02/25/2020:svnIntel(R)ClientSystems:pnNUC8CCHK:pvrK44798-502:rvnIntelCorporation:rnNUC8CCHB:rvrK44767-502:cvnIntelCorporation:ct35:cvr2.0: dmi.product.family: CH dmi.product.name: NUC8CCHK dmi.product.sku: BKNUC8CCHKR dmi.product.version: K44798-502 dmi.sys.vendor: Intel(R) Client Systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875199/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
