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无法在蓝牙设置中打开可见性选项

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无法在蓝牙设置中打开可见性选项

我可以打开和关闭蓝牙，但无法打开设备的可见性。因此，我的设备无法与其他蓝牙设备连接。如何启用可见性选项？

输出

lsusb; dmesg | egrep -i 'blue|firm'; hciconfig -a在下面。

Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 008: ID 0cf3:3004 Atheros Communications, Inc. AR3012 Bluetooth 4.0
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 174f:114f Syntek 
Bus 003 Device 012: ID 0000:0538  
Bus 003 Device 002: ID 0e8f:0022 GreenAsia Inc. multimedia keyboard controller
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[    0.159709] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[    6.120927] usb 1-1.3: Product: Bluetooth USB Host Controller
[   14.437686] Bluetooth: Core ver 2.21
[   14.437703] Bluetooth: HCI device and connection manager initialized
[   14.437707] Bluetooth: HCI socket layer initialized
[   14.437709] Bluetooth: L2CAP socket layer initialized
[   14.437714] Bluetooth: SCO socket layer initialized
[   16.579597] Bluetooth: hci0 command 0x1005 tx timeout
[   18.595716] Bluetooth: hci0 command 0x0c23 tx timeout
[   20.607908] Bluetooth: hci0 command 0x0c14 tx timeout
[   22.784061] Bluetooth: hci0 command 0x0c25 tx timeout
[   23.985055] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   23.985057] Bluetooth: BNEP filters: protocol multicast
[   23.985061] Bluetooth: BNEP socket layer initialized
[   24.800188] Bluetooth: hci0 command tx timeout
[  482.272615] usb 1-1.3: Product: Bluetooth USB Host Controller
[  483.025292] Bluetooth: RFCOMM TTY layer initialized
[  483.025307] Bluetooth: RFCOMM socket layer initialized
[  483.025319] Bluetooth: RFCOMM ver 1.11
[10877.522483] usb 1-1.3: device firmware changed
[10878.160012] usb 1-1.3: Product: Bluetooth USB Host Controller
[10897.605386] usb 1-1.3: Product: Bluetooth USB Host Controller
hci0:   Type: Primary  Bus: USB
    BD Address: 48:D2:24:25:39:02  ACL MTU: 1022:8  SCO MTU: 183:5
    DOWN 
    RX bytes:682 acl:0 sco:0 events:48 errors:0
    TX bytes:2954 acl:0 sco:0 commands:48 errors:0
    Features: 0xff 0xfe 0x0d 0xfe 0xd8 0x7f 0x7b 0x87
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
    Link policy: RSWITCH HOLD SNIFF 
    Link mode: SLAVE ACCEPT

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