From: Yang Li <yang.li@xxxxxxxxxxx> When the CIS link is disconnected, the ASE status transitions from Releasing to Idle. > HCI Event: Disconnect Complete (0x05) plen 4 #1484 [hci0] 67.947425 Status: Success (0x00) Handle: 512 Address: 5C:B1:E1:2F:01:B9 (Resolvable) Identity type: Random (0x01) Identity: E8:D5:2B:59:57:A6 (Static) Reason: Remote User Terminated Connection (0x13) = bluetoothd: src/shared/bap.c:stream_io_disconnected() stream 0x.. 67.948018 = bluetoothd: src/shared/bap.c:bap_ucast_set_state() stream 0xdff.. 67.948145 = bluetoothd: src/shared/bap.c:stream_notify() stream 0xdffda8 st.. 67.948275 = bluetoothd: src/gatt-database.c:send_notification_to_device() G.. 67.948525 = bluetoothd: profiles/audio/bap.c:bap_state() stream 0xdffda8: r.. 67.948679 = bluetoothd: profiles/audio/transport.c:bap_state_changed() stre.. 67.948967 = bluetoothd: profiles/audio/transport.c:transport_update_playing.. 67.949061 = bluetoothd: profiles/audio/transport.c:media_transport_remove_o.. 67.949106 = bluetoothd: profiles/audio/transport.c:media_owner_free() Owner.. 67.949149 = bluetoothd: profiles/audio/transport.c:media_transport_suspend(.. 67.949375 = bluetoothd: profiles/audio/transport.c:transport_set_state() St.. 67.949423 = bluetoothd: src/shared/bap.c:bap_ucast_detach() stream 0xdffda8.. 67.949574 = bluetoothd: profiles/audio/media.c:pac_clear() endpoint 0xdd2d2.. 67.949710 When BIG sync is lost, the stream status transitions from Streaming to Idle. > HCI Event: LE Meta Event (0x3e) plen 3 #3189 [hci0] 118.870863 LE Broadcast Isochronous Group Sync Lost (0x1e) BIG Handle: 0x00 Reason: Remote User Terminated Connection (0x13) = bluetoothd: src/shared/bap.c:stream_io_disconnected() stream 0.. 118.871183 = bluetoothd: src/shared/bap.c:bap_bcast_set_state() stream 0xdf.. 118.871227 = bluetoothd: profiles/audio/bap.c:bap_state_bcast_sink() stream.. 118.871258 = bluetoothd: profiles/audio/bass.c:bap_state_changed() stream 0.. 118.871307 = bluetoothd: src/gatt-database.c:send_notification_to_device()... 118.871384 = bluetoothd: profiles/audio/transport.c:bap_state_changed() str.. 118.871452 = bluetoothd: profiles/audio/transport.c:transport_bap_update_li.. 118.871509 = bluetoothd: profiles/audio/transport.c:transport_update_playin.. 118.871555 = bluetoothd: profiles/audio/transport.c:transport_set_state() S.. 118.871610 = bluetoothd: src/shared/bap.c:bap_bcast_sink_detach() stream 0x.. 118.871660 = bluetoothd: profiles/audio/media.c:pac_clear() endpoint 0xdd25.. 118.871689 Fixes: https://github.com/bluez/bluez/issues/1343 Signed-off-by: Yang Li <yang.li@xxxxxxxxxxx> --- src/shared/bap.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/src/shared/bap.c b/src/shared/bap.c index bccbc73ff..d51f3106e 100644 --- a/src/shared/bap.c +++ b/src/shared/bap.c @@ -6584,10 +6584,8 @@ static bool stream_io_disconnected(struct io *io, void *user_data) DBG(stream->bap, "stream %p io disconnected", stream); - if (stream->ep->state == BT_ASCS_ASE_STATE_RELEASING) - stream_set_state(stream, BT_BAP_STREAM_STATE_CONFIG); + stream_set_state(stream, BT_BAP_STREAM_STATE_IDLE); - bt_bap_stream_set_io(stream, -1); return false; } --- base-commit: ae1b7f6ba805f82742bbc32ff275e268248ef9f8 change-id: 20250624-bap_for_big_sync_lost-63476c679dbb Best regards, -- Yang Li <yang.li@xxxxxxxxxxx>