From 2407441a2f67341a0e13b4ba6547555e387c671c Mon Sep 17 00:00:00 2001
From: Andreas Pehrson <apehrson@mozilla.com>
Date: Mon, 16 Sep 2024 15:54:04 +0200
Subject: [PATCH] Block Studio Display Mic for input-only when its Speakers are
 default output

The VPIO unit behaves the same when not setting an output as when
setting the default output device as output.

Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1914925.
---
 src/backend/mod.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/backend/mod.rs b/src/backend/mod.rs
index d3c84111..5b242517 100644
--- a/src/backend/mod.rs
+++ b/src/backend/mod.rs
@@ -3323,6 +3323,7 @@ impl<'ctx> CoreStreamData<'ctx> {
                 .map(|id| log_device_and_get_model_uid(id, DeviceType::INPUT))
                 .unwrap_or_default(),
             out_id
+                .or_else(|| get_default_device(DeviceType::OUTPUT))
                 .map(|id| log_device_and_get_model_uid(id, DeviceType::OUTPUT))
                 .unwrap_or_default(),
         );