For now, after I unplugged the other one, it seems that this problem was caused due to having the external RME Fireface UFX connected into firewire, although it was not in use and not selected as my default card (I had chosen the internal built-in audio in all settings I could think of.)
It probably has to do something with the kernel probing for whether not the soundcard is "still there", or some kind of similar override/priority conflict in the audio layer. Note that my previous Ubuntu build with 20.04.1LTS and the 5.4.x kernel tree did not even recognize the sound card, and as mentioned in my previous bug report considering that, my entire audio went suddenly dead with a mundane apt update. Finding absolutely no solution to that whatsoever, I just updated to 20.10 and got my audio back (AND my second, external RME sound card was visible to Ubuntu.) I have now had the external RME card unplugged for a while now and there's no more digital audio glitching. So, the fundamental issue is NOT solved, but this is the workaround for now. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1903909 Title: Audio keeps on popping and "bitcrunching" (digital output) at semi- random constant intervals Status in pulseaudio package in Ubuntu: New Bug description: This is with both of my sound cards, no matter which one I choose, the digital audio output is either popping with loud snaps or "frequency- modulating" (sounds around the same like someone would've filtered everything into a very narrow bandwidth for a couple of seconds.) ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: pulseaudio 1:13.99.2-1ubuntu2 ProcVersionSignature: Ubuntu 5.8.0-29.31-generic 5.8.14 Uname: Linux 5.8.0-29-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu50 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Nov 11 22:21:38 2020 SourcePackage: pulseaudio UpgradeStatus: Upgraded to groovy on 2020-11-11 (0 days ago) dmi.bios.date: 06/26/2012 dmi.bios.release: 0.0 dmi.bios.vendor: Intel Corp. dmi.bios.version: WBIBX10J.86A.0336.2012.0626.0141 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: DP55WB dmi.board.vendor: Intel Corporation dmi.board.version: AAE64798-206 dmi.chassis.type: 2 dmi.ec.firmware.release: 0.0 dmi.modalias: dmi:bvnIntelCorp.:bvrWBIBX10J.86A.0336.2012.0626.0141:bd06/26/2012:br0.0:efr0.0:svn:pn:pvr:rvnIntelCorporation:rnDP55WB:rvrAAE64798-206:cvn:ct2:cvr: modified.conffile..etc.pulse.daemon.conf: [modified] modified.conffile..etc.pulse.default.pa: [modified] mtime.conffile..etc.pulse.daemon.conf: 2020-11-11T22:18:21.176026 mtime.conffile..etc.pulse.default.pa: 2020-11-11T17:20:02.886116 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1903909/+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
