Normally run X11. Tried Wayland. Audio with X11. No Audio with Wayland.

[TheSupremeVizier]

Wise Gurus of KubuntuForums,

If there is a better forum for this item, please tell me where to post it. I don't know if this is a noob topic.
I've already exercised Google AI to investigate this issue but keep running into deeper and deeper rabbit holes in areas of minimal personal experience.

I have an application newly installed via flatpak that requires Wayland.
I've installed Wayland on my 24.04.3 Kubuntu system running the NVIDIA 6.14.0-24-generic kernel and the nvidia-driver-575-open driver (575.64.03).
The application runs, but there is no sound.

I logged out and back in, choosing Wayland on the login screen. No audio.
I rebooted and then logged in, choosing Wayland. No audio.
I logged out and logged back in, choosing X11. There is audio.

When there is no audio, the "speaker icon" on the taskbad is red, and when I click on the red speaker I am informed there is "no device".

When there is audio, the "speaker icon" is white, and even better, I can listen to my tunes and hear audio when using multiple applications.

If you want me to use Wayland and generate the outputs of commands like

systemctl --user status pipewire.service
systemctl --user status wireplumber.service
systemctl restart --user pulseaudio.service
systemctl --user status pulseaudio.service
pulseaudio -k
pulseaudio --start
systemctl restart --user pulseaudio.service
journalctl -p 3 -xb | grep -i "pulse\\|audio\\|alsa"
sudo dmesg | grep -i "audio\\|sound\\|pulse\\|alsa"

or other commands, then I will switch back into Wayland, do so, and provide logs.

Is there a problem in the audio stack when Wayland is used? Or is this an unresolved conflict between X11 and Wayland?
Has anyone here experienced this issue?
If so, I would greatly appreciate advice and/or links to knowledge sources that discuss solutions and provide step-by-step instructions.
Either that, or I delete the application loaded via flatpak and delete Wayland and wait for maturization of the technology within Kubuntu.

Thank you very much in advance.

[claydoh]

Wayland has nothing to do with audio whatsoever, so this is a big head scratcher.

I wonder if you might need to switch to a different device option or device profile in the audio widget maybe?

[TheSupremeVizier]

I am currently using X11.
What follows is a dumb question, I know.
What are you calling an "audio widget"?
Is that the audio speaker icon on the task bar? If so, right clicking pops up a window titled "Audio -- System Settings", within which "Line Out" is currently associated with "Port:" "Line Out" and "Profile:" "Analog Stereo Duplex". There is a section for "Inactive Cards" within which it states "Rembrandt Radeon High Definition Audio Controller" ... "Profile:" "Off" and "HDA NVidia" ... "Profile:" "Off".
And it works...

I should have also mentioned that while using Wayland I noticed that depositing text with a mouse into a typical buffer led to many bounces. For example, you want to deposit the word "foo" that was picked up in your mouse buffer, and so when you attempt to place this word into a form like a login screen of an application running on your desktop, this results in "foofoofoofoo..."

[claydoh]

What follows is a dumb question, I know.

No such thing

The system tray audio widget, yes.

And using your internal audio means this isn't an nvidia driver issue, for the sound.

I have an application newly installed via flatpak that requires Wayland.

Which specific app, out of curiosity?

[TheSupremeVizier]

Fender Studio. I've been "playing" guitar for a very long time. Playing is in quotes because, compared to the greats, I _attempt_ to play. ;-)