"device-added"/ removed sound appears when screen is locked and turned off

Hi everybody,
for some reason, after a recent Manjaro (unstable) update, I hear this annoying “device-added” (at least that’s one that I found in the system settings) and “device-removed” (just guessing the opposite name) sound a lot when my screen turns off after inactivity.
It takes a few minutes, but then it can be heard around every 10 seconds, while both my displays stay dark.
Is there a way to turn this off or is it a known bug atm?

Operating System: Manjaro Linux rolling
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0
Kernel Version: 6.6.63-1-MANJARO (64-bit)
Graphics Platform: Wayland
Processors: 6 × Intel® Core™ i5-8600K CPU @ 3.60GHz
Memory: 31.2 GiB of RAM
Graphics Processor: AMD Radeon RX 6800
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7B46
System Version: 1.0

Hi - I wonder if this is an occurrence/re-occurrence of this issue: https://www.reddit.com/r/radeon/comments/ve9rgv/when_monitor_goes_to_sleep_device_reconnecting/

Which, while unsolved, sounds like it could sometimes be worked around by options including:

  • Choosing a specific input on your monitor, instead of “Auto detect”
  • Updating firmware
  • Disabling sound through your monitor

Perhaps check if there were any firmware package updates in that Manjaro update, see if a different kernel version helps, and check in the Manjaro forums if anyone else there is experiencing the same issue?

Edit: There is also some work among KDE developers to try to help workaround the root issue: 494330 – Infinite loop of disconnection/connection notification sounds when certain screens go to sleep

Thank you, this sounds exactly like the bug that I’m experiencing.
I will follow this issue and mark this thread as solved.

Edit: I also checked if there were any firmware updates pending, but that was not the case.
Furthermore, upgrading from Linux 6.6 to 6.12 didn’t make any difference.
Probably really the Plasma bug described in Bugzilla.