Having the same issue on a Lenovo N20 "Clapper" Chromebook. Applying the Git patch crashes PulseAudio for me as well. Can't get any sound to play at all from the built-in speakers.
dylan@dylan-Clapper:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 3: Generic Digital [Generic Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: chtmax98090 [chtmax98090], device 0: 3 [] Subdevices: 0/1 Subdevice #0: subdevice #0 card 1: chtmax98090 [chtmax98090], device 1: Deep-Buffer Audio (*) [] Subdevices: 1/1 Subdevice #0: subdevice #0 dylan@dylan-Clapper:~$ lspci | grep Audio 00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e) -- 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/1833116 Title: chtmax98090 not working out of the box Status in alsa-driver package in Ubuntu: Confirmed Bug description: chtmax98090 intel HD audio device doesn't work out of the box after installing ubuntu (from 14.04 to 18.04). It shows "Dummy Output" on audio devices. Audio options shows device and it works if I do this: git clone https://github.com/plbossart/UCM.git cd UCM cp -r chtmax98090/ /usr/share/alsa/ucm/ alsactl store It would be great if there were a solution to make it works out of the box. The device (Chromebook Acer CB3-111 has it's end of life for chromeOS in July-August, so I suppose more people with this device will change OS perhaps to Ubuntu). ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.18.0-21.22~18.04.1-generic 4.18.20 Uname: Linux 4.18.0-21-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jaime 1293 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Mon Jun 17 20:32:35 2019 InstallationDate: Installed on 2019-06-17 (0 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) PackageArchitecture: all SourcePackage: alsa-driver UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/18/2014 dmi.bios.vendor: coreboot dmi.chassis.type: 3 dmi.chassis.vendor: GOOGLE dmi.modalias: dmi:bvncoreboot:bvr:bd08/18/2014:svnGOOGLE:pnGnawty:pvr1.0:cvnGOOGLE:ct3:cvr: dmi.product.name: Gnawty dmi.product.version: 1.0 dmi.sys.vendor: GOOGLE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1833116/+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
