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"No Bluetooth adapters have been found" Error But USB Adaptor Seen By PC

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    "No Bluetooth adapters have been found" Error But USB Adaptor Seen By PC

    Upgraded from 12.04 and found my Bluetooth adaptor is not being recognised anymore and thus my usual keyboard/mouse won't work. It's a Logitech dongle for use with keyboard/mouse, but I also use it for Android SmartLock and file transfers.

    Bluedevil dosn't load, Bluetooth from Settings says it can't find it. Added everything bluez, bluetooth related including Blueman and no luck. lsusb shows the adaptor though.

    Ran a few things in Terminal from previous requests on Ubuntu and Kubuntu forums. Can anyone help?

    dmesg | grep -i blue
    Code:
    [   12.944374] init: bluetooth-touch main process (813) terminated with status 127
    [   13.320428] Bluetooth: Core ver 2.17
    [   13.320448] Bluetooth: HCI device and connection manager initialized
    [   13.320456] Bluetooth: HCI socket layer initialized
    [   13.320458] Bluetooth: L2CAP socket layer initialized
    [   13.320460] Bluetooth: SCO socket layer initialized
    [   13.353571] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
    [   13.353573] Bluetooth: BNEP filters: protocol multicast
    [   13.353582] Bluetooth: BNEP socket layer initialized
    [   13.357799] Bluetooth: RFCOMM TTY layer initialized
    [   13.357807] Bluetooth: RFCOMM socket layer initialized
    [   13.357812] Bluetooth: RFCOMM ver 1.11
    lsusb
    Code:
    Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 008: ID 046d:c70c Logitech, Inc. BT Mini-Receiver (HID proxy mode)
    Bus 004 Device 007: ID 046d:c70b Logitech, Inc. BT Mini-Receiver (HID proxy mode)
    Bus 004 Device 006: ID 046d:0b02 Logitech, Inc. C-UV35 [Bluetooth Mini-Receiver] (HID proxy mode)
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    hcitool dev
    Code:
    Can't open device: No such device
    EDIT:

    After several days of Google searching, I finally found the solution here:

    http://ubuntuforums.org/showthread.php?t=1332197

    "There are two modes the dongle works in, Embedded and HCI. By default the embedded is active, which emulates a USB device so it seems to your PC that your using a normal USB mouse/keyoard.

    If you hold the little red Button on the USB BT mini-receiver it will enable the other mode. Hold the red button on the BT dongle and plug it into the computer, and after 3-5 seconds of holding the button, the Bluetooth icon will appear in the system tray.

    You can then use the adapter as a BT receiver. The adapter continues to work in BT mode after reboots, but I think the occasional BT failure (usually after an update) is caused by the mode changing."
    Last edited by uv_goth; Jul 25, 2015, 10:47 AM.
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