Hi, I'm trying to use bluez-5.3 to connect to a Bluetooth speaker. My computer is ubuntu-12.10 x86_64 with Linux 3.5.0. The bluez source was downloaded from http://www.bluez.org/release-of-bluez-5-3/ I have read the previous thread "Bluez 5.2 A2DP: Unable to select SEP" and thus enable source, sink and control in profiles/audio/manager.c. I also enable gateway, socket and source in /etc/bluetooth/audio.conf. I disable systemd in configure. And then make and make install. Unfortunately, I still got an error "Unable to select SEP" when I try to connect to my speaker. Any suggestion or idea? Thanks for any help. Here is the log from bluetoothd. bluetoothd[5137]: src/device.c:connect_profiles() /org/bluez/hci0/dev_00_02_5B_00_FF_04 0000110B-0000-1000-8000-00805F9B34FB, client :1.189 bluetoothd[5137]: profiles/audio/manager.c:a2dp_sink_connect() path /org/bluez/hci0/dev_00_02_5B_00_FF_04 bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_ref() 0x1d0f3f0: ref=1 bluetoothd[5137]: profiles/audio/sink.c:sink_set_state() State changed /org/bluez/hci0/dev_00_02_5B_00_FF_04: SINK_STATE_DISCONNECTED -> SINK_STATE_CONNECTING bluetoothd[5137]: profiles/audio/sink.c:sink_connect() stream creation in progress bluetoothd[5137]: src/adapter.c:connected_callback() hci0 device 00:02:5B:00:FF:04 connected eir_len 5 bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_connect_cb() AVDTP: connected signaling channel to 00:02:5B:00:FF:04 bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_connect_cb() AVDTP imtu=672, omtu=895 bluetoothd[5137]: profiles/audio/avctp.c:avctp_set_state() AVCTP Connecting bluetoothd[5137]: profiles/audio/avdtp.c:session_cb() bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_parse_resp() DISCOVER request succeeded bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_discover_resp() seid 1 type 1 media 0 in use 0 bluetoothd[5137]: profiles/audio/avdtp.c:session_cb() bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_parse_resp() GET_CAPABILITIES request succeeded bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_get_capabilities_resp() seid 1 type 1 media 0 bluetoothd[5137]: profiles/audio/sink.c:discovery_complete() Discovery complete bluetoothd[5137]: Unable to select SEP bluetoothd[5137]: src/device.c:device_profile_connected() audio-sink Input/output error (5) bluetoothd[5137]: src/device.c:device_profile_connected() returning response to :1.189 bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_unref() 0x1d0f3f0: ref=0 bluetoothd[5137]: profiles/audio/avctp.c:avctp_connect_cb() AVCTP: connected to 00:02:5B:00:FF:04 bluetoothd[5137]: profiles/audio/avctp.c:init_uinput() AVRCP: uinput initialized for 00:02:5B:00:FF:04 bluetoothd[5137]: profiles/audio/avrcp.c:session_tg_init_control() 0x1d14010 version 0x0104 bluetoothd[5137]: src/device.c:device_profile_connected() audio-avrcp Success (0) bluetoothd[5137]: profiles/audio/avctp.c:avctp_set_state() AVCTP Connected bluetoothd[5137]: profiles/audio/avrcp.c:handle_vendordep_pdu() AVRCP PDU 0x31, company 0x001958 len 0x0500 bluetoothd[5137]: profiles/audio/avdtp.c:connection_lost() Disconnected from 00:02:5B:00:FF:04 bluetoothd[5137]: profiles/audio/sink.c:sink_set_state() State changed /org/bluez/hci0/dev_00_02_5B_00_FF_04: SINK_STATE_CONNECTING -> SINK_STATE_DISCONNECTED bluetoothd[5137]: profiles/audio/avrcp.c:session_tg_destroy() 0x1d14010 bluetoothd[5137]: profiles/audio/avctp.c:avctp_set_state() AVCTP Disconnected bluetoothd[5137]: profiles/audio/avctp.c:avctp_disconnected() AVCTP: closing uinput for 00:02:5B:00:FF:04 bluetoothd[5137]: profiles/audio/avdtp.c:avdtp_free() 0x1d0f3f0 bluetoothd[5137]: profiles/audio/avctp.c:avctp_confirm_cb() AVCTP: incoming connect from 00:02:5B:00:FF:04 bluetoothd[5137]: profiles/audio/avctp.c:avctp_set_state() AVCTP Connecting bluetoothd[5137]: profiles/audio/avctp.c:avctp_connect_cb() AVCTP: connected to 00:02:5B:00:FF:04 bluetoothd[5137]: profiles/audio/avctp.c:init_uinput() AVRCP: uinput initialized for 00:02:5B:00:FF:04 bluetoothd[5137]: profiles/audio/avrcp.c:session_tg_init_control() 0x1d0c2f0 version 0x0104 bluetoothd[5137]: src/device.c:device_profile_connected() audio-avrcp Success (0) bluetoothd[5137]: profiles/audio/avctp.c:avctp_set_state() AVCTP Connected bluetoothd[5137]: profiles/audio/avrcp.c:handle_vendordep_pdu() AVRCP PDU 0x31, company 0x001958 len 0x0500 Sincerely, Om -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html