[pulseaudio-discuss] [PATCH] switch-on-port-available: ignore bluetooth cards

[Tanu Kaskinen]

When the user manually switches the profile of a bluetooth headset from
"off" to "a2dp_sink", the port availability changes from "unknown" to
"yes", which triggered a recursive profile change in
module-switch-on-port-available. Such recursivity isn't (and possibly
can't) be handled well (that is, PulseAudio crashed), so let's avoid
doing bluetooth profile changes from module-switch-on-port-available
(they're useless anyway).

Bug link: https://bugs.freedesktop.org/show_bug.cgi?id=107044
---
 src/modules/module-switch-on-port-available.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/modules/module-switch-on-port-available.c b/src/modules/module-switch-on-port-available.c
index 8fd3c9e5f..321db361f 100644
--- a/src/modules/module-switch-on-port-available.c
+++ b/src/modules/module-switch-on-port-available.c
@@ -281,6 +281,14 @@ static pa_hook_result_t port_available_hook_callback(pa_core *c, pa_device_port
         return PA_HOOK_OK;
     }
 
+    /* Our profile switching logic caused trouble with bluetooth headsets (see
+     * https://bugs.freedesktop.org/show_bug.cgi?id=107044) and
+     * module-bluetooth-policy takes care of automatic profile switching
+     * anyway, so we ignore bluetooth cards in
+     * module-switch-on-port-available. */
+    if (pa_safe_streq(pa_proplist_gets(port->card->proplist, PA_PROP_DEVICE_BUS), "bluetooth"))
+        return PA_HOOK_OK;
+
     switch (port->available) {
     case PA_AVAILABLE_YES:
         switch_to_port(port);
-- 
2.17.0