我尝试过恢复，删除了不必要的软件包。我有点困惑，因为在更新内核以包含新的 Intel 7260 驱动程序（以使 wifi 正常工作）后，蓝牙工作了几次，然后在重新启动以更新系统软件包后停止了。
现在添加蓝牙设备的选项消失了，只显示“蓝牙：关闭”和“打开蓝牙”和“蓝牙设置”
似乎我可能在更新并重新启动系统时更改了某些内容，但我不确定是什么？我运行了，sudo apt-get update然后运行了sudo apt-get upgrade，似乎不需要下载任何软件包。
我在下面提供了一些诊断。如果有人可以向我推荐其他类似的在线解决方案（我已经找了一段时间了，这似乎与我的情况非常相似，但还没有收到回复：蓝牙适配器从工作正常变为无法识别）
我所看到的屏幕截图：
和
系统盘
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 002: ID 8087:07dc Intel Corp.
Bus 002 Device 003: ID 0bda:5716 Realtek Semiconductor Corp.
Bus 002 Device 004: ID 8087:09fa Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
sudo rfkill 列表
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
须藤lshw
*-multimedia:1
description: Audio device
product: Lynx Point-LP HD Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:59 memory:f7d10000-f7d13fff
*-pci:0
description: PCI bridge
product: Lynx Point-LP PCI Express Root Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: e4
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:16 ioport:2000(size=4096) memory:df200000-df3fffff ioport:df400000(size=2097152)
*-pci:1
description: PCI bridge
product: Lynx Point-LP PCI Express Root Port 3
vendor: Intel Corporation
physical id: 1c.2
bus info: pci@0000:00:1c.2
version: e4
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:18 memory:f7c00000-f7cfffff
*-network
description: Wireless interface
product: Wireless 7260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:06:00.0
logical name: wlan1
version: 6b
serial: 5c:51:4f:1c:8a:f4
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.11.0-intelwireless-wl firmware=22.0.7.0 ip=192.168.0.10 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:58 memory:f7c00000-f7c01fff
*-usb:1
description: USB controller
product: Lynx Point-LP USB EHCI #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:23 memory:f7d1b000-f7d1b3ff
*-isa
description: ISA bridge
product: Lynx Point-LP LPC Controller
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: driver=lpc_ich latency=0
resources: irq:0
*-storage
description: SATA controller
product: Lynx Point-LP SATA Controller 1 [AHCI mode]
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 04
width: 32 bits
clock: 66MHz42: USB 00.0: 11500 Bluetooth Device
capabilities: storage msi pm ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:57 ioport:f0b0(size=8) ioport:f0a0(size=4) ioport:f090(size=8) ioport:f080(size=4) ioport:f060(size=32) memory:f7d1a000-f7d1a7ff
*-serial UNCLAIMED
description: SMBus
product: Lynx Point-LP SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 04
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:f7d19000-f7d190ff ioport:f040(size=32)
*-scsi
physical id: 1
logical name: scsi0
capabilities: emulated
*-disk
description: ATA Disk
product: LITEONIT LMT-256
physical id: 0.0.0mark@mark-XPS-12-9Q33:~$ sudo hciconfig hci0 reset bus info: scsi@0:0.0.0
logical name: /dev/sda
version: DM81
serial: TW0XXM30550853850829
size: 238GiB (256GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=5 guid=b27ee8c2-4f94-4aee-bb34-dadf65e11b0f
*-volume:0
description: Windows FAT volume
vendor: MSDOS5.0
physical id: 1
bus info: scsi@0:0.0.0,1
logical name: /dev/sda1
logical name: /boot/efi
version: FAT32
serial: 0c97-4e89
size: 495MiB
capacity: 499MiB
capabilities: boot fat initialized
configuration: FATs=2 filesystem=fat mount.fstype=vfat mount.options=rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro name=EFI system partition state=mounted
*-volume:1
description: Windows FAT volume
vendor: MSDOS5.0
physical id: 2
bus info: scsi@0:0.0.0,2
logical name: /dev/sda2
version: FAT32
serial: e0f9-9180
size: 15MiB
capacity: 39MiB
capabilities: precious readonly hidden nomount fat initialized
configuration: FATs=2 filesystem=fat name=Basic data partition
*-volume:2
description: Windows reserved partition
physical id: 3
bus info: scsi@0:0.0.0,3
logical name: /dev/sda3
serial: f21bffb4-6790-48c7-a3cd-04aa701961e6
capacity: 127MiB
capabilities: nofs
configuration: name=Microsoft reserved partition
*-volume:3
description: Windows NTFS volume
physical id: 4
bus info: scsi@0:0.0.0,4
logical name: /dev/sda4
version: 3.1
serial: fefd-fa12
size: 460MiB
capacity: 489MiB
capabilities: precious readonly hidden nomount ntfs initialized
configuration: clustersize=4096 created=2013-08-29 00:41:13 filesystem=ntfs label=WINRETOOLS name=Basic data partition state=clean
*-volume:4
description: Windows NTFS volume
physical id: 5
bus info: scsi@0:0.0.0,5
logical name: /dev/sda5
version: 3.1
serial: ce32f619-10cd-3540-93d7-40ee173568ea
size: 158GiB
capacity: 158GiB
capabilities: ntfs initialized
configuration: clustersize=4096 created=2013-08-29 00:41:30 filesystem=ntfs label=OS name=Basic data partition state=clean
*-volume:5
description: EFI partition
physical id: 6
bus info: scsi@0:0.0.0,6
logical name: /dev/sda6
serial: 5565cdb4-f266-4c46-b718-f92b0c33178c
capacity: 8197MiB
configuration: name=Basic data partition
*-volume:6
description: Windows NTFS volume
physical id: 7
bus info: scsi@0:0.0.0,7
logical name: /dev/sda7
version: 3.1
serial: 74e8-1e5f
size: 11GiB
capacity: 11GiB
capabilities: precious readonly hidden nomount ntfs initialized
configuration: clustersize=4096 created=2013-08-29 01:59:21 filesystem=ntfs label=PBR Image modified_by_chkdsk=true mounted_on_nt4=true name=Microsoft recovery partition resize_log_file=true state=dirty upgrade_on_mount=true
*-volume:7
description: EXT4 volume
vendor: Linux
physical id: 8
bus info: scsi@0:0.0.0,8
logical name: /dev/sda8
logical name: /
version: 1.0
serial: ed66b002-bb2f-4b8e-a8a9-82df9cc4a2e5
size: 59GiB
capabilities: journaled extended_attributes large_files huge_files dir_nlink recover extents ext4 ext2 initialized
configuration: created=2013-09-05 19:25:30 filesystem=ext4 lastmountpoint=/ modified=2013-09-07 15:56:55 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered mounted=2013-09-08 13:10:26 state=mounted
*-battery
description: Lithium Ion Battery
product: DELL 7YM0737
vendor: SDI
physical id: 1
version: Not Specified
serial: Not Specified
slot: System Battery
capacity: 51060mWh
configuration: voltage=7.4V
信息
42: USB 00.0: 11500 Bluetooth Device
[Created at usb.122]
Unique ID: 7bWa.cdUiY6836R9
Parent ID: pBe4.2DFUsyrieMD
SysFS ID: /devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3:1.0
SysFS BusID: 2-3:1.0
Hardware Class: bluetooth
Model: "Bluetooth Device"
Hotplug: USB
Vendor: usb 0x8087
Device: usb 0x07dc
Revision: "0.01"
Driver: "btusb"
Driver Modules: "btusb"
Speed: 12 Mbps
Module Alias: "usb:v8087p07DCd0001dcE0dsc01dp01icE0isc01ip01in00"
Driver Info #0:
Driver Status: btusb is active
Driver Activation Cmd: "modprobe btusb"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #38 (Hub)
sudo uname -a
Linux mark-XPS-12-9Q33 3.11.0-intelwireless-wl #1 SMP Sat Sep 7 20:40:41 EDT 2013 x86_64 x86_64 x86_64 GNU/Linux
sudo lsb_release-a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.3 LTS
Release: 12.04
Codename: precise
sudo dpkg -l | grep blue
ii blueman 1.23-0ubuntu2.1 A Graphical bluetooth manager
ii bluez 4.98-2ubuntu7 Bluetooth tools and daemons
ii bluez-alsa 4.98-2ubuntu7 Bluetooth ALSA support
ii bluez-cups 4.98-2ubuntu7 Bluetooth printer driver for CUPS
ii bluez-gstreamer 4.98-2ubuntu7 Bluetooth GStreamer support
ii gir1.2-gnomebluetooth-1.0 3.2.2-0ubuntu5 Introspection data for GnomeBluetooth
ii gnome-bluetooth 3.2.2-0ubuntu5 GNOME Bluetooth tools
ii libbluetooth3 4.98-2ubuntu7 Library to use the BlueZ Linux Bluetooth stack
ii libgnome-bluetooth8 3.2.2-0ubuntu5 GNOME Bluetooth tools - support library
ii pulseaudio-module-bluetooth 1:1.1-0ubuntu15.3 Bluetooth module for PulseAudio sound server
sudo hciconfig hci0 重置
Can't init device hci0: Connection timed out (110)
hwinfo --蓝牙
[Created at usb.122]
UDI: /org/freedesktop/Hal/devices/usb_device_8087_7dc_noserial_if0
Unique ID: 7bWa.cdUiY6836R9
Parent ID: pBe4.2DFUsyrieMD
SysFS ID: /devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3:1.0
SysFS BusID: 2-3:1.0
Hardware Class: bluetooth
Model: "Bluetooth Device"
Hotplug: USB
Vendor: usb 0x8087
Device: usb 0x07dc
Revision: "0.01"
Driver: "btusb"
Driver Modules: "btusb"
Speed: 12 Mbps
Module Alias: "usb:v8087p07DCd0001dcE0dsc01dp01icE0isc01ip01in00"
Driver Info #0:
Driver Status: btusb is active
Driver Activation Cmd: "modprobe btusb"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #4 (Hub)
任何帮助都会很感激。我甚至会送你一瓶啤酒！;)
答案1
摘自问题正文楼主提到过：
确保您的蓝牙在 BIOS/UEFI 中已启用。