You have been subscribed to a public bug: After update my Inspiron 5490 from Ubuntu 18.04 to 20.04 system see only "Dummy Sound".
I updated kernel to 5.6.13-050613-lowlatency, reinstall pulseaudio, add "options snd-hda-intel dmic_detect=0" to /etc/modprobe.d/alsa-base.con, add "blacklist snd_soc_skl" to /etc/modprobe.d/blacklist.conf. I applied the solution from this source: https://bugs.launchpad.net/ubuntu/+source /alsa-driver/+bug/1876238. I still have this problem. Audio: Device-1: Intel driver: sof-audio-pci Sound Server: ALSA v: k5.6.13-050613-lowlatency $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: sofhdadsp [sof-hda-dsp], device 1: HDA Digital (*) [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: sofhdadsp [sof-hda-dsp], device 3: HDMI1 (*) [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: sofhdadsp [sof-hda-dsp], device 4: HDMI2 (*) [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: sofhdadsp [sof-hda-dsp], device 5: HDMI3 (*) [] Subdevices: 1/1 Subdevice #0: subdevice #0 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: evince 3.36.0-2 Uname: Linux 5.6.13-050613-lowlatency x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Thu May 21 17:18:36 2020 DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-bionic-amd64-20190418-59+beaver-osp1+X00 InstallationDate: Installed on 2020-01-31 (111 days ago) InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20190418-12:10 SourcePackage: evince UpgradeStatus: Upgraded to focal on 2020-05-18 (2 days ago) ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- There is no sound from the built-in speakers and does not see the built-in microphone https://bugs.launchpad.net/bugs/1879973 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- 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
