I was wrong about the headphones. They were not plugged in at all this time and the sound of the internal speakers are messed up. I'm attaching a sound recording I just made. If I switch to my monitors' speakers they work fine.
** Attachment added: "messed up sound recording" https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1860930/+attachment/5323113/+files/bad-sound.m4a -- 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/1860930 Title: Internal speakers don't work when USB headphones are plugged in during boot Status in pulseaudio package in Ubuntu: New Bug description: I have an Asus Zephyrus S GX531GX laptop and a pair of Asus Delta USB headphones. When the headphones are plugged in during boot the internal speakers won't work. There is only crackling sound coming from them. It doesn't help in I unplug the headphones. There is no problem if they are not plugged in during boot. I'm using Ubuntu 19.10. Please let me know if you need more information. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: pulseaudio 1:13.0-1ubuntu1.1 ProcVersionSignature: Ubuntu 5.3.0-26.28-generic 5.3.13 Uname: Linux 5.3.0-26-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 Date: Sun Jan 26 19:26:35 2020 InstallationDate: Installed on 2019-12-19 (38 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=hu_HU.UTF-8 SHELL=/bin/bash PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/28/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: GX531GXR.304 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: GX531GXR dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrGX531GXR.304:bd06/28/2019:svnASUSTeKCOMPUTERINC.:pnZephyrusSGX531GXR_GX531GXR:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnGX531GXR:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: Zephyrus S dmi.product.name: Zephyrus S GX531GXR_GX531GXR dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1860930/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp