I'm on Linux Mint 19.1, kernel 4.15.0-46-generic.
My bluetooth device seems to be installed but cannot discovery any devices.
here are some info:
Code: Select all
lsusb
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 003: ID 04d9:1603 Holtek Semiconductor, Inc. Keyboard
Bus 005 Device 002: ID 1c4f:0034 SiGma Micro
Bus 005 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 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0cf3:e005 Atheros Communications, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubCode: Select all
dmesg | egrep -i 'blue|firm'
[ 0.225624] acpi PNP0A08:01: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-7f] only partially covers this bridge
[ 0.855780] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.855830] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.855936] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856021] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856087] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856155] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856226] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856293] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856363] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856432] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856503] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856572] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856634] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856706] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856774] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856846] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856921] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.856993] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.857067] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.857143] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.857219] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.857300] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.857378] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 0.857459] [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
[ 4.557727] Bluetooth: Core ver 2.22
[ 4.557771] Bluetooth: HCI device and connection manager initialized
[ 4.557776] Bluetooth: HCI socket layer initialized
[ 4.557780] Bluetooth: L2CAP socket layer initialized
[ 4.557788] Bluetooth: SCO socket layer initialized
[ 10.350383] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 10.350385] Bluetooth: BNEP filters: protocol multicast
[ 10.350390] Bluetooth: BNEP socket layer initialized
[ 124.487084] Bluetooth: RFCOMM TTY layer initialized
[ 124.487090] Bluetooth: RFCOMM socket layer initialized
[ 124.487094] Bluetooth: RFCOMM ver 1.11
[ 196.114611] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 245.119171] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 261.124653] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 454.218524] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 940.101611] Bluetooth: hci0: last event is not cmd complete (0x0f)thank you
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update:
no error in Linux Mint. my problem is that I don't have an antenna for my m2 wifi card. so that it only can discover some devices that are very very close to it. with an antenna, this m2 wifi card work smoothly with many bluetooth devices.