@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. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1861295 Title: Bluetooth not working Status in linux package in Ubuntu: Confirmed Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861295/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
