[Apple 05ac:8290] Bluetooth not working

[maurizio de santis]

I installed Ubuntu 19.10 on this Macbook Pro a couple of weeks ago. Bluetooth was working during the first days, but now it won't work anymore.

Here is the output of dmesg | grep -i blue, showing some errors that might be interesting:

> dmesg | grep -i blue
[ 1.562871] usb 1-3: Product: Bluetooth USB Host Controller
[ 2.104835] input: Broadcom Corp. Bluetooth USB Host Controller as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/0003:05AC:8290.0003/input/input10
[ 2.164582] hid-generic 0003:05AC:8290.0003: input,hidraw2: USB HID v1.11 Keyboard [Broadcom Corp. Bluetooth USB Host Controller] on usb-0000:00:14.0-3/input0
[ 2.164685] input: Broadcom Corp. Bluetooth USB Host Controller as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.1/0003:05AC:8290.0004/input/input11
[ 2.164761] hid-generic 0003:05AC:8290.0004: input,hidraw3: USB HID v1.11 Mouse [Broadcom Corp. Bluetooth USB Host Controller] on usb-0000:00:14.0-3/input1
[ 3.605086] Bluetooth: Core ver 2.22
[ 3.605103] Bluetooth: HCI device and connection manager initialized
[ 3.605107] Bluetooth: HCI socket layer initialized
[ 3.605109] Bluetooth: L2CAP socket layer initialized
[ 3.605112] Bluetooth: SCO socket layer initialized
[ 5.720427] Bluetooth: hci0: command 0x0c03 tx timeout
[ 6.637120] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 6.637122] Bluetooth: BNEP filters: protocol multicast
[ 6.637126] Bluetooth: BNEP socket layer initialized
[ 13.876494] Bluetooth: hci0: BCM: Reset failed (-110)

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-26-generic 5.3.0-26.28
ProcVersionSignature: Ubuntu 5.3.0-26.28-generic 5.3.13
Uname: Linux 5.3.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: maurizio 1377 F.... pulseaudio
 /dev/snd/controlC0: maurizio 1377 F.... pulseaudio
 /dev/snd/controlC1: maurizio 1377 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 29 14:16:01 2020
InstallationDate: Installed on 2020-01-23 (5 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: Apple Inc. MacBookPro12,1
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/usr/bin/fish
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-26-generic root=UUID=adc45397-ab6d-4a20-8795-b9e7f3d733b6 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.3.0-26-generic N/A
 linux-backports-modules-5.3.0-26-generic N/A
 linux-firmware 1.183.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/30/2019
dmi.bios.vendor: Apple Inc.
dmi.bios.version: 188.0.0.0.0
dmi.board.name: Mac-E43C1C25D4880AD6
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro12,1
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-E43C1C25D4880AD6
dmi.modalias: dmi:bvnAppleInc.:bvr188.0.0.0.0:bd10/30/2019:svnAppleInc.:pnMacBookPro12,1:pvr1.0:rvnAppleInc.:rnMac-E43C1C25D4880AD6:rvrMacBookPro12,1:cvnAppleInc.:ct9:cvrMac-E43C1C25D4880AD6:
dmi.product.family: MacBook Pro
dmi.product.name: MacBookPro12,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[maurizio de santis (izietto)]

IMPORTANT UPDATE (I guess):

I discovered that using linux-image-5.3.0-18-generic bluetooth works, while with 5.3.0.29.33 it doesn't!

[maurizio de santis (izietto)]

This is the output of dmesg | grep blue now:

[ 1.654580] usb 1-3: Product: Bluetooth USB Host Controller
[ 2.200921] input: Broadcom Corp. Bluetooth USB Host Controller as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/0003:05AC:8290.0003/input/input10
[ 2.260596] hid-generic 0003:05AC:8290.0003: input,hidraw2: USB HID v1.11 Keyboard [Broadcom Corp. Bluetooth USB Host Controller] on usb-0000:00:14.0-3/input0
[ 2.260712] input: Broadcom Corp. Bluetooth USB Host Controller as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.1/0003:05AC:8290.0004/input/input11
[ 2.260796] hid-generic 0003:05AC:8290.0004: input,hidraw3: USB HID v1.11 Mouse [Broadcom Corp. Bluetooth USB Host Controller] on usb-0000:00:14.0-3/input1
[ 3.799758] Bluetooth: Core ver 2.22
[ 3.799774] Bluetooth: HCI device and connection manager initialized
[ 3.799777] Bluetooth: HCI socket layer initialized
[ 3.799779] Bluetooth: L2CAP socket layer initialized
[ 3.799782] Bluetooth: SCO socket layer initialized
[ 3.945690] Bluetooth: hci0: BCM: chip id 102 build 0729
[ 3.946774] Bluetooth: hci0: BCM: product 05ac:8290
[ 3.947663] Bluetooth: hci0: BCM: features 0x2f
[ 3.963657] Bluetooth: hci0: BCM20703A1 Generic USB UHE Apple 20Mhz fcbga_X87
[ 6.550671] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 6.550672] Bluetooth: BNEP filters: protocol multicast
[ 6.550677] Bluetooth: BNEP socket layer initialized
[ 15.801326] Bluetooth: RFCOMM TTY layer initialized
[ 15.801334] Bluetooth: RFCOMM socket layer initialized
[ 15.801338] Bluetooth: RFCOMM ver 1.11

[Kai-Heng Feng (kaihengfeng)]

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/

[Alex DeLorenzo (alex-delorenzo)]

Also experiencing this issue on stock 19.10 with the same hardware. Will report back after installing the latest kernel.

[Alex DeLorenzo (alex-delorenzo)]

Still an issue with the mainline kernel

[Kai-Heng Feng (kaihengfeng)]

Did the wifi also stop working?

[Alex DeLorenzo (alex-delorenzo)]

@kaihengfeng yes both BT and Wifi stop working intermittently.

I found a fix that will bring both the BT and Wifi back if they go down, however. By removing the BT-related modules from the kernel, issuing a USB reset, and then loading the BT modules back into the kernel. BT will work after that.

For the Wifi, I reset the PCI device via Linux and rescan the PCI bus, and then I set the wireless mode to "managed" and it works again.

I set systemd to remove the Wifi module from the kernel before suspending, and then have systemd re-insert the Wifi module into the kernel upon waking up from sleep.

I can include the scripts I use to do this, if anyone is interested.