Estoy usando ubuntu 15.10, versión del kernel 4.2.0-25. Mi computadora portátil es Dell Inspiron 14-3452
El problema es que no puedo volver a activar el bluetooth una vez que lo desactivo. La única forma de habilitarlo es reiniciar.
rfkill list
no muestra ningún bloque blando ni bloque duro
sudo hciconfig hci0 up
devoluciones
Can't init device hci0: Connection timed out (110)
ifconfig muestra el dispositivo bluetooth hci0, pero cuando escribo lsusb no muestra ningún dispositivo bluetooth
$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0bda:5683 Realtek Semiconductor Corp.
Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 004: ID 0bda:b739 Realtek Semiconductor Corp.
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 006: ID 148f:5372 Ralink Technology, Corp. RT5372 Wireless Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
dmesg | grep Bluetooth regresa
dmesg | grep Bluetooth
[ 2.673842] usb 1-2.1: Product: Bluetooth Radio
[ 5.317495] Bluetooth: Core ver 2.20
[ 5.317534] Bluetooth: HCI device and connection manager initialized
[ 5.317541] Bluetooth: HCI socket layer initialized
[ 5.317548] Bluetooth: L2CAP socket layer initialized
[ 5.317558] Bluetooth: SCO socket layer initialized
[ 5.530006] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 5.530012] Bluetooth: BNEP filters: protocol multicast
[ 5.530020] Bluetooth: BNEP socket layer initialized
[ 5.673210] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 5.673218] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[ 5.675249] Bluetooth: hci0: rom_version status=0 version=1
[ 8.617443] Bluetooth: RFCOMM TTY layer initialized
[ 8.617460] Bluetooth: RFCOMM socket layer initialized
[ 8.617474] Bluetooth: RFCOMM ver 1.11
[ 3627.862044] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 3627.862047] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[ 3627.862911] Bluetooth: hci0: rom_version status=0 version=1
[ 6283.018539] Bluetooth: hci0 urb ffff880147d5c840 failed to resubmit (113)
[ 6360.048608] Bluetooth: hci0 urb ffff8801438f6900 failed to resubmit (113)
[ 7193.045144] Bluetooth: hci0 urb ffff880143bebc00 failed to resubmit (113)
[ 7596.035702] Bluetooth: hci0 urb ffff8801438c03c0 failed to resubmit (113)
Probé rfkill desbloquear bluetooth, editando /etc/rc.local y nada funciona.