[Solved] Please help with Bluetooth

[CtrlAltDel]

I recently upgraded to Mint 18 Cinnamon and bluetooth stopped working. Does anyone know if there are different files I need to use to correspond with this version of Mint or have any suggestions on how to get it to work?

I ran these two commands:
sudo modprobe -r btusb
rfkill unblock bluetooth

and

rfkill list all shows Bluetooth as Soft Blocked: Yes Hard Blocked: No.

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Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
	Subsystem: Dell RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1028:05b7]
	Kernel driver in use: r8169
	Kernel modules: r8169
04:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
	Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]
	Kernel driver in use: wl

Bus 003 Device 006: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0

[vimsical]

Are you sure that the firmware for that bluetooth device is loaded? Broadcom chip firmware are not shipped due to IP issue. Check your dmesg and see if there is relevant error message.

The issue I encountered and resolved is here: viewtopic.php?f=49&t=228805

[CtrlAltDel]

Are you sure that the firmware for that bluetooth device is loaded? Broadcom chip firmware are not shipped due to IP issue. Check your dmesg and see if there is relevant error message.

The issue I encountered and resolved is here: viewtopic.php?f=49&t=228805

I'm not sure if that would work for me. I'm just getting the old "adapter not found" issue. I should have mentioned that. ABout the bluetooth device being loaded, I'm not sure. It was working with Mint 17, does that matter?

For firmware in Mint 17 I had these:

BCM43142A0-0a5c-21d7.hcd
fw-0a5c_21d7.hcd

in lib/firmware/brcm

I had to download these and install them to make Bluetooth work in 17. Did they change for Mint 18?

[CtrlAltDel]

Does anyone know which firmware I should be using? If I just had a couple of names, I could probably figure out how to do everything else myself.

This is my network controller.

Broadcom Corporation BCM43142 802.11b/g/n (rev 01)

I updated Mint online so, I'm not even entirely sure that I have the correct firmware files for Bluetooth in the new system. And honestly, I tried some procedure where I downloaded what I thought were updated firmware files but, they didn't work either. So, I may have altered something that I shouldn't have.

I'm not sure if I have the correct files in lib/firmware/brcm. I did d/l some other ones and they didn't work. I can't remember now if I deleted the right ones. Maybe I deleted the wrong two files.

These are the two files in question:

BCM43142A0-0a5c-21d7.hcd
fw-0a5c_21d7.hcd

Is that right for Mint 18 or were those the Mint 17 files?

[vimsical]

Post the result of

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lsusb

and

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dmesg

for hints of what might be going on.

[CtrlAltDel]

Great. First, I would like to say that I tried Bluetooth with a liveCD of Mint 18 and it didn't work either. Even with that being so, I copied all the files in lib/firmware/brcm from the liveCD and replaced all my Bluetooth files with them.

This didn't work either but, at least now I know I have all the exact files that came with the original setup.

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Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
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 005: ID 0bda:0182 Realtek Semiconductor Corp. 
Bus 003 Device 004: ID 0951:16a7 Kingston Technology 
Bus 003 Device 003: ID 413c:2107 Dell Computer Corp. 
Bus 003 Device 006: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0
Bus 003 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I couldn't post the output of dmesg due to it being too many characters.

Does this help?

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lspci -nnk | grep -iA2 net
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
	Subsystem: Dell RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1028:05b7]
	Kernel driver in use: r8169
	Kernel modules: r8169
04:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
	Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]
	Kernel driver in use: wl

rfkill list all
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: brcmwl-0: Wireless LAN
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

The kernel I'm using with Mint 18 is 4.4.0-21

[JeremyB]

You likely need to check

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dmesg | egrep -i 'blue|firm'

To see what the firmware needs to be named, in some kernels now it needs to be /lib/firmware/brcm/BCM.hcd

[CtrlAltDel]

You likely need to check

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dmesg | egrep -i 'blue|firm'

To see what the firmware needs to be named, in some kernels now it needs to be /lib/firmware/brcm/BCM.hcd

How is this:

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dmesg | egrep -i 'blue|firm'
[    0.136396] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[   14.965277] Bluetooth: Core ver 2.21
[   14.965287] Bluetooth: HCI device and connection manager initialized
[   14.965290] Bluetooth: HCI socket layer initialized
[   14.965292] Bluetooth: L2CAP socket layer initialized
[   14.965296] Bluetooth: SCO socket layer initialized
[   17.337137] Bluetooth: hci0 command 0x1001 tx timeout
[   25.333133] Bluetooth: hci0: BCM: Reading local version info failed (-110)
[   25.337211] Bluetooth: hci0: BCM: chip id 70
[   25.353237] Bluetooth: hci0: mint
[   25.353240] Bluetooth: hci0: BCM (001.001.011) build 0000
[   26.277585] bluetooth hci0: Direct firmware load for brcm/BCM.hcd failed with error -2
[   26.277589] Bluetooth: hci0: BCM: Patch brcm/BCM.hcd not found
[   26.446564] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   26.446566] Bluetooth: BNEP filters: protocol multicast
[   26.446568] Bluetooth: BNEP socket layer initialized

[CtrlAltDel]

I performed these:

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wget https://www.dropbox.com/s/9ryy3ir1tby6wrf/fw-0a5c_21d7.hcd

sudo cp fw-0a5c_21d7.hcd  /lib/firmware/brcm/BCM43142A0-0a5c-21d7.hcd

sudo modprobe -r btusb
rfkill unblock bluetooth

actions and had no luck with making Bluetooth work, unfortunately. This was the same technique used to make Bluetooth work in Mint 17.

[vimsical]

For the firmware to be reloaded, the system has to be power off (not just rebooted) and back on. Just killing the radio doesn't reload the firmware.

Also, if you look at the error:

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[   26.277585] bluetooth hci0: Direct firmware load for brcm/BCM.hcd failed with error -2

Linux is expecting the file /lib/firmware/brcm/BCM.hcd. So you have to rename your file.

[JeremyB]

For the firmware to be reloaded, the system has to be power off (not just rebooted) and back on. Just killing the radio doesn't reload the firmware.

Also, if you look at the error:

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[   26.277585] bluetooth hci0: Direct firmware load for brcm/BCM.hcd failed with error -2

Linux is expecting the file /lib/firmware/brcm/BCM.hcd. So you have to rename your file.

It is and a simple

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sudo mv /lib/firmware/brcm/BCM43142A0-0a5c-21d7.hcd /lib/firmware/brcm/BCM.hcd

should work after a reload of btusb or a reboot

[CtrlAltDel]

Thank you, Vimsical.

Thank you, JeremyB.

Works great now.