Hi. A week or two ago some update changed a behavior: my Fiio K5 pro external (USB) headphone amplifier + DAC , which has external power and a power knob, is not detected by the sound system (not listed under Audio Devices in Plasma) if Fedora starts when the K5 is turned off (and then turned on after Fedora has started).
Fedora used to show a notification that a new audio device was in use when I turned it on after Fedora had started, now it doesn’t. lsusb sees it when it is on and pw-cli , list-objects lists
id 47, type PipeWire:Interface:Device/3 factory.id = "14" client.id = "32" device.api = "alsa" device.description = "FiiO K5 Pro" device.name = "alsa_card.usb-GuangZhou_FiiO_Electronics_Co._Ltd_FiiO_K5_Pro-00" device.nick = "FiiO K5 Pro" media.class = "Audio/Device"
however it isn’t listed under Audio devices in Plasma and it cannot be selected for audio out (and nothing is played through it).
If the K5 is turned on when Fedora starts it works well and I can thereafter turn the K5 on and off, while Feodra remains running, and the notification appears as prior and everything works as expected. So this isn’t critical but merely an annoyance. What can I do to alleviate it, if anything?