Thank you for reporting this bug to Ubuntu. Ubuntu 20.10 (groovy) reached end-of-life on July 22, 2021.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in. ** Changed in: alsa-driver (Ubuntu) Status: New => Won't Fix -- 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/1901316 Title: [Z370 AORUS Gaming 7, Realtek ALC1220, Green Line Out, Rear] Playback problem. Center and subwoofer work, everything else has no sound. Status in alsa-driver package in Ubuntu: Won't Fix Bug description: When using the Ubuntu sound settings and doing a test, only the center and subwoofer channels produce sound. When playing any media that relies on left/right channels, I don't hear anything. Used alsamixer to unmute / increase volume to all desired channels with no change Used PulseAudio volume control to load multiple different audio profiles with the same results. Ubuntu Release: Description: Ubuntu 20.10 Release: 20.10 alsa-base: Installed: 1.0.25+dfsg-0ubuntu5 Candidate: 1.0.25+dfsg-0ubuntu5 Version table: *** 1.0.25+dfsg-0ubuntu5 500 500 http://us.archive.ubuntu.com/ubuntu groovy/main amd64 Packages 500 http://us.archive.ubuntu.com/ubuntu groovy/main i386 Packages 100 /var/lib/dpkg/status pulseaudio: Installed: 1:13.99.2-1ubuntu1 Candidate: 1:13.99.2-1ubuntu1 Version table: *** 1:13.99.2-1ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu groovy/main amd64 Packages 100 /var/lib/dpkg/status I also experienced the issue in the latest default kernel for Ubuntu, so I downloaded one of the later stable ones: Linux terry-pc 5.9.1-050901-generic #202010170731 SMP Sat Oct 17 07:42:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux When doing a speaker test, I get the following results: speaker-test -c6 speaker-test 1.2.3 Playback device is default Stream parameters are 48000Hz, S16_LE, 6 channels Using 16 octaves of pink noise Rate set to 48000Hz (requested 48000Hz) Buffer size range from 32 to 349525 Period size range from 10 to 116509 Using max buffer size 349524 Periods = 4 was set period_size = 87381 was set buffer_size = 349524 0 - Front Left -- NO SOUND 4 - Center -- WORKS CORRECTLY 1 - Front Right -- NO SOUND 3 - Rear Right -- NO SOUND 2 - Rear Left -- NO SOUND 5 - LFE -- WORKS CORRECTLY I plugged headphones into the front jack, and the system detected and switched the sound output device to the headphones. However, I still did not hear any sound when doing a test. Lastly, this sound device works as expected under Windows 10, so I don't believe that it is a hardware issue. Thank you for your time. ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: alsa-base 1.0.25+dfsg-0ubuntu5 Uname: Linux 5.9.1-050901-generic x86_64 ApportVersion: 2.20.11-0ubuntu50 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat Oct 24 09:12:25 2020 PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Green Line Out, Rear Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: Only some of outputs are working Title: [Z370 AORUS Gaming 7, Realtek ALC1220, Green Line Out, Rear] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/28/2019 dmi.bios.release: 5.12 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F15a dmi.board.asset.tag: Default string dmi.board.name: Z370 AORUS Gaming 7 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF15a:bd11/28/2019:br5.12:svnGigabyteTechnologyCo.,Ltd.:pnZ370AORUSGaming7:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ370AORUSGaming7:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: Z370 AORUS Gaming 7 dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. modified.conffile..etc.modprobe.d.alsa-base.conf: [deleted] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1901316/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
