Both desktop backends dropped writes to a line whose device had gone
away, and the per-speaker playout ignored any failure, so that speaker
stayed silent for the rest of the session. A write to a dead line now
throws; the playout drops that line and the speaker's next packet
opens a fresh one. Sound effects and the microphone test's loopback
reopen their line the same way.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ericek111
12ca585d90