SUMMARY opening the volume popup makes the volume on the usb ALC4082 from my motherboard jump to 100% when using hw mixing, but both wireplumber and alsa report that the volume is at the same level. changing the volume using the ui or the shortcut will make the volume go back to the original level this happens every time STEPS TO REPRODUCE 1. play audio with any app (with no audio playing it doesn't happen) 2. open audio widget OBSERVED RESULT volume jumps to maximum on headphones EXPECTED RESULT volume stays at same level SOFTWARE/OS VERSIONS Operating System: Fedora Linux 42 KDE Plasma Version: 6.4.3 KDE Frameworks Version: 6.16.0 Qt Version: 6.9.1 Kernel Version: 6.15.7-200.fc42.x86_64 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 9800X3D 8-Core Processor Memory: 32 GiB of RAM (30.9 GiB usable) Graphics Processor 1: NVIDIA GeForce RTX 4070 Ti SUPER (main) Graphics Processor 2: AMD Radeon Graphics Manufacturer: ASUS ADDITIONAL INFORMATION motherboard: rog crosshair x670e hero
small correction, it still happens with software mixer, but when using it i just leave the hardware mixer volume at max so the change in volume is not perceivable
could be a bug with the alsa-ucm-config for my board: https://github.com/alsa-project/alsa-ucm-conf/issues/598
That sounds very, very likely.