USB speaker not working reliably after trixie upgrade
Hi,
I have a Sennheiser USB conference speaker/mike. It's worked fine on a
number of computers with a number of different Debian releases up to now.
On the one system I've upgraded to trixie, it no longer works reliably
as a speaker - it'll be visible in pavucontrol, and still work as a
microphone (at least where I've tested), but audio output won't work -
the playback level doesn't shift in pavucontrol when audio should be
going out of it, and no sound comes out (so it's as if pavucontrol knows
it's not working properly).
It works sometimes - e.g. if I log out of my X session and then log back
in and plug it in it'll work sometimes; sometimes it won't work at that
point, but if I start playback to the system speakers and then switch to
the USB speaker then it'll work.
The device appears thus in lsusb:
Bus 001 Device 016: ID 1395:0041 DSEA A/S SP 20 for Lync
My user account is in, I think, all the suitable groups:
cdrom floppy audio dip video plugdev netdev bluetooth lpadmin scanner
pipewire
Oddly, when the speaker is not-working, if I try and watch a youtube
video, it gets stuck as if buffering. I dunno if that's a red herring,
though.
I've not made any specific config changes - prior to trixie, this Just
Worked. Googling hasn't picked up anything obvious.
I've not seen anything obvious in syslog/kernel log / xsession log...
Any suggestions / tips for filing a useful bug / ... ?
Thanks,
Matthew
[please CC me, I'm not subscribed to this list]
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