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 Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1860930 Title: Internal speakers don't work when USB headphones are plugged in during boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1860930/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs