CachyOS fresh install. Right out of the box.
No Audio devices in System Settings menu, no audio devices in taskbar Volume menu. Both are empty.
Here goes my journalctl log.
I uploaded bug log here:
Default kernel, KDE Plasma. I explained the bug in the following thread.
https://discuss.cachyos.org/t/no-sound-devices-after-fresh-install/3168/43
I used different kernels (bore, lts, arch - no sound devices). But all the sound cards present in the system with no errors.
I managed to resolve the issue by installing pulseaudio (on previous installation), but I consider this not the right solution. People say, kernels are broken(?)
UPD: THE SOLUTION FOUND But it is unstable! Sometimes works, sometimes - NOT
- I ended my Wayland Session and changed to X11 Session.
MIRACLE! All the devices are back in System Settings and Taskbar! - I ended X11 Session and changed back to Wayland.
EVERYTING WORKS! Speaker test also works.
But this solution does not mean there is no bug. The BUG is still alive. Kill it, please! KDE - Wayland is still buggy.