Hello Richard, On Tue, Jul 22, 2025 at 08:01:11PM +0200, Richard wrote: > It now also happened on Debian. aplay -l and lsusb still showed the > expansion modue (I'm currently on kernel 6.15.7), systemctl > soft-reboot plus unplugging and replugging the module did indeed help, > audio worked again through it. Though soft-reboot was quite slow, > about as slow as a full reboot, though I'm not sure if it would also > take e.g. --force for a faster reboot. Did you check after the soft-reboot and before replugging the hardware if the software restart was enough to fix the issue? If yes that would be a strong hint that this is a userspace issue. Just to recap on earlier mails: Replugging the hardware alone didn't help. I wonder if in the broken state `aplay` is able to still playback things. If that works that would be another indication that the userspace software stack is involved. Best regards Uwe
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