My T63 shows the same lines in dmesg.
Code:
# dmesg | grep -i bluet
<6>[ 0.498754] Bluetooth: Core ver 2.16
<6>[ 0.498869] Bluetooth: HCI device and connection manager initialized
<6>[ 0.498919] Bluetooth: HCI socket layer initialized
<6>[ 0.498956] Bluetooth: L2CAP socket layer initialized
<6>[ 0.499009] Bluetooth: SCO socket layer initialized
<6>[ 1.476040] Bluetooth: HCI UART driver ver 2.2
<6>[ 1.476073] Bluetooth: HCI H4 protocol initialized
<6>[ 1.476105] Bluetooth: HCILL protocol initialized
<6>[ 1.537505] Bluetooth: RFCOMM TTY layer initialized
<6>[ 1.537551] Bluetooth: RFCOMM socket layer initialized
<6>[ 1.537586] Bluetooth: RFCOMM ver 1.11
<6>[ 1.537614] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
<6>[ 1.537652] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
They indicate kernel support, not the presence of Bluetooth hardware.
Code:
# hcitool dev
Devices: