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Jan 26 21:10:38 some-computer systemd: Reached target Bluetooth. Jan 26 21:10:38 some-computer systemd: Started Load/Save RF Kill Switch Status. Jan 26 21:10:38 some-computer systemd: Starting Load/Save RF Kill Switch Status. Jan 26 21:10:38 some-computer kernel: usb 1-1.3: New USB device strings: Mfr=0, Product=2, SerialNumber=0 Jan 26 21:10:38 some-computer kernel: usb 1-1.3: New USB device found, idVendor=0a12, idProduct=0001, bcdDevice=88.91 Jan 26 21:10:38 some-computer kernel: usb 1-1.3: config 1 interface 1 altsetting 0 endpoint 0x83 has wMaxPacketSize 0, skipping

Jan 26 21:10:38 some-computer kernel: usb 1-1.3: config 1 interface 1 altsetting 0 endpoint 0x3 has wMaxPacketSize 0, skipping I get this when inserting the Bluetooth USB dongle: jan 26 21:10:38 some-computer kernel: usb 1-1.3: new full-speed USB device number 6 using ehci-pci Blueman is not recognizing the Bluetooth devices. It works fine in Windows 10, but not in Ubuntu 18.04 (also not with kernel 5.3). After the patch you wont see the event/command in the output of hcidump. You will only see the last HCI Event for Error: Unsupported Feature or Parameter Value as long as you have not applied the patch. > HCI Event: Command Complete (0x0e) plen 6ĭelete Stored Link Key (0x03|0x0012) ncmd 1Įrror: Unsupported Feature or Parameter Value Manufacturer: Cambridge Silicon Radio (10) LMP Version: 4.0 (0圆) LMP Subversion: 0x1113 HCI Version: 4.0 (0圆) HCI Revision: 0x810 Read Local Version Information (0x04|0x0001) ncmd 1

> HCI Event: Command Complete (0x0e) plen 12

Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 TX bytes:368 acl:0 sco:0 commands:30 errors:0įeatures: 0xff 0xff 0xc5 0xfa 0xdb 0xbf 0x7b 0x87 RX bytes:574 acl:0 sco:0 events:30 errors:0 I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb Like Bluetooth dongle problem.(probably regarding the driver) I experience the same problem that the bluetooth device won't initialize properly: $ lsusb | grep Bluetoothīus 001 Device 006: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)