Bluetooth на Lenovo Ideapad S20-30

Сегодня я установил Ubuntu на свой Lenovo S20-30, и большинство вещей работает, но я не могу использовать bluetooth. В системных настройках я могу изменить переключатель Bluetooth на «on», но когда я вернусь на панель, он снова «выключится». Кроме того, в строке меню отсутствует символ Bluetooth, также отмечен флажок в панели.

Поскольку я совершенно не знаком с миром Linux, я не знаю, какая дополнительная информация вам нужна для диагноза но некоторые из них могут помочь:

$ dmesg | grep Bluetooth
[   14.677429] Bluetooth: Core ver 2.19
[   14.677466] Bluetooth: HCI device and connection manager initialized
[   14.677477] Bluetooth: HCI socket layer initialized
[   14.677481] Bluetooth: L2CAP socket layer initialized
[   14.677497] Bluetooth: SCO socket layer initialized
[   14.723428] Bluetooth: RFCOMM TTY layer initialized
[   14.723443] Bluetooth: RFCOMM socket layer initialized
[   14.723451] Bluetooth: RFCOMM ver 1.11
[   15.038890] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   15.038895] Bluetooth: BNEP filters: protocol multicast
[   15.038905] Bluetooth: BNEP socket layer initialized

и

$ sudo rfkill list
0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
3: brcmwl-0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

и

$ sudo lsmod | grep bluetooth
bluetooth             446409  10 bnep,rfcomm
6lowpan_iphc           18702  1 bluetooth

и

$ uname -a; lsusb
Linux tobis-lenovo 3.16.0-31-generic #43~14.04.1-Ubuntu SMP Tue Mar 10 20:13:38 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 004: ID 105b:e065  
Bus 001 Device 003: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 002: ID 5986:054a Acer, Inc 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

выход форма сценария Jeremy31:

$ dmesg | tail -15
[   18.881813] cfg80211:   (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm), (0 s)
[   18.881816] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[   22.074707] init: plymouth-upstart-bridge main process ended, respawning
[   22.100053] init: plymouth-upstart-bridge main process ended, respawning
[   45.348105] audit_printk_skb: 135 callbacks suppressed
[   45.348111] audit: type=1400 audit(1427026413.699:72): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2333 comm="apparmor_parser"
[   45.348126] audit: type=1400 audit(1427026413.699:73): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2333 comm="apparmor_parser"
[   45.349128] audit: type=1400 audit(1427026413.699:74): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2333 comm="apparmor_parser"
[  154.979500] systemd-hostnamed[2562]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[ 1063.242591] systemd-hostnamed[8556]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[ 2549.195081] systemd-hostnamed[16264]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[ 2712.987102] usbcore: registered new interface driver btusb
[ 2713.065862] bluetooth hci0: Direct firmware load failed with error -2
[ 2713.065868] bluetooth hci0: Falling back to user helper
[ 2713.141987] Bluetooth: hci0: BCM: patch brcm/BCM43142A0-105b-e065.hcd not found