Bluetooth rapidly toggling on and off on MSI GE66 laptop running Ubuntu 20.10, using 100% of CPU

Question

I just did a fresh install of Ubuntu 20.10 to my MSI GE66 laptop. For some reason, the Bluetooth is rapidly toggling and on off. Here is a video which demonstrates what is happeneing: https://youtu.be/Y7kT3Nkxkag

Also when I run htop it shows that systemd-udevd is using 100% of my CPU (one of 16 threads on my machine). Running udevadm monitor keeps printing the following:

KERNEL[14196.456057] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
KERNEL[14196.457305] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14196.457336] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
KERNEL[14196.457376] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill24105 (rfkill)
KERNEL[14196.457501] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14196.457517] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14196.457541] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14196.457568] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
UDEV  [14196.458030] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
UDEV  [14196.458060] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
UDEV  [14196.514604] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
KERNEL[14196.614800] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill24105 (rfkill)
KERNEL[14196.614815] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
KERNEL[14196.614824] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14196.614846] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14196.614857] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14196.614867] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14196.625238] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
KERNEL[14196.625276] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
UDEV  [14196.670293] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill4297 (rfkill)
KERNEL[14197.044037] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
KERNEL[14197.045068] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.045100] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
KERNEL[14197.045128] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill24106 (rfkill)
KERNEL[14197.045203] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.045243] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.045273] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.045327] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
UDEV  [14197.045651] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
UDEV  [14197.045683] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.202815] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill24106 (rfkill)
KERNEL[14197.202852] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
KERNEL[14197.202862] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.202870] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.202895] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.202904] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.213432] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
KERNEL[14197.213468] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
KERNEL[14197.632034] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
KERNEL[14197.633245] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.633276] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
KERNEL[14197.633284] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill24107 (rfkill)
KERNEL[14197.633380] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.633536] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.633572] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.633583] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
UDEV  [14197.633872] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
UDEV  [14197.650160] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill4297 (rfkill)
UDEV  [14197.650484] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.790798] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill24107 (rfkill)
KERNEL[14197.790837] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
KERNEL[14197.790862] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.790890] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.790915] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14197.790924] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14197.801383] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
KERNEL[14197.801418] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
UDEV  [14197.804361] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
UDEV  [14197.804580] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
UDEV  [14197.957591] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
UDEV  [14198.111830] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14198.220004] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)
KERNEL[14198.221202] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14198.221232] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0 (bluetooth)
KERNEL[14198.221242] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0/bluetooth/hci0/rfkill24108 (rfkill)
KERNEL[14198.221291] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.0 (usb)
KERNEL[14198.221391] add      /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14198.221427] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14/1-14:1.1 (usb)
KERNEL[14198.221461] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-14 (usb)

What exactly is going on? How can I solve this?

Edit

Here's some more info about my system.

Output of sudo lshw | grep product

    product: GE66 Raider 10UH (1542.1)
       product: MS-1542
             product: HMAA2GS6AJR8N-XN
             product: HMAA2GS6AJR8N-XN
          product: Intel(R) Core(TM) i7-10870H CPU @ 2.20GHz
          product: 10th Gen Core Processor Host Bridge/DRAM Registers
             product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16)
                product: NVIDIA Corporation
                product: NVIDIA Corporation
             product: UHD Graphics
             product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem
             product: Comet Lake PCH Thermal Controller
             product: Comet Lake USB 3.1 xHCI Host Controller
                product: xHCI Host Controller
                   product: SteelSeries KLC
                   product: SteelSeries ALC
                   product: Integrated Camera
                product: xHCI Host Controller
             product: Comet Lake PCH Shared SRAM
             product: Comet Lake PCH Serial IO I2C Controller #0
             product: Comet Lake PCH Serial IO I2C Controller #2
             product: Comet Lake HECI Controller
             product: Comet Lake PCI Express Root Port #17
                product: ASMedia Technology Inc.
                   product: xHCI Host Controller
                   product: xHCI Host Controller
             product: Comet Lake PCI Express Root Port #9
                product: Sandisk Corp
                   product: WDC PC SN730 SDBPNTY-1T00-1032
             product: Intel Corporation
                product: Intel Corporation
             product: Intel Corporation
                product: Intel Corporation
             product: Intel Corporation
                product: RTS525A PCI Express Card Reader
             product: Comet Lake LPC Controller
             product: Comet Lake PCH cAVS
             product: Comet Lake PCH SMBus Controller
             product: Comet Lake PCH SPI Controller
          product: PnP device PNP0c02
          product: PnP device MSI0007
          product: PnP device PNP0f13
          product: PnP device PNP0c02
          product: PnP device PNP0b00
          product: PnP device INT3f0d
          product: PnP device PNP0c02
          product: PnP device PNP0c02
          product: PnP device PNP0c02
          product: PnP device PNP0c02
       product: To Be Filled By O.E.M.

Output of spci -knn | grep Net -A3; lsusb

04:00.0 Network controller [0280]: Intel Corporation Device [8086:2725] (rev 1a)
    Subsystem: Intel Corporation Device [8086:0024]
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi
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 002: ID 1038:1122 SteelSeries ApS SteelSeries KLC
Bus 001 Device 067: ID 8087:0032 Intel Corp. 
Bus 001 Device 004: ID 5986:1160 Acer, Inc Integrated Camera
Bus 001 Device 003: ID 1038:1132 SteelSeries ApS SteelSeries ALC
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Edit 2

Even if I can't get the bluetooth working that's fine. I'm ok just disabling it entirely, ultimately I just don't want it consuming CPU like it is right now.

Edit 3

Just did a fresh install of Ubuntu 20.04 instead, I have the same issue.

You can try a fresh install of Ubuntu 20.04 instead. If it works just stay on that version for a long time (five year life span). Ubuntu 20.10 only has a life span of 9 months from date of release. — WinEunuuchs2Unix, Mar 22 '21 at 18:19
I also tried with 20.04 and it experienced the same problem. — cyrusbehr, Mar 22 '21 at 18:46
But yes I think I'll be downgrading to 20.04 b/c of the longer support. — cyrusbehr, Mar 22 '21 at 23:24
Do you have the Killer ax Wi-Fi + Bluetooth v5.1 or the 802.11 ax Wi-Fi 6 + Bluetooth v5.1? (If you don't know, it may say when you run lspci). When you comment put @WinEunuuchs2Unix in the message or I will never see it. — WinEunuuchs2Unix, Mar 25 '21 at 23:56
Please test again using a pre-release (21.04 as of today) LiveUSB's "Try Ubuntu" environment. If the bug occurs in the pre-release version of Ubuntu, and if nobody has filed a bug report yet, then file the bug report. If there is an existing bug report already, subscribe to it and help test the fix when it appears. — user535733, Mar 28 '21 at 14:01

score 1 · Answer 1 · edited Mar 30 '21 at 19:32

1

I had the same issue on Ubuntu 20.04.02 with the 5.10.24 kernel.

Inserting the following line in /etc/udev/rules.d/81-bluetooth-hci.rules solved the problem for me:

SUBSYSTEM=="usb", ATTRS{idVendor}=="8087", ATTRS{idProduct}=="0032", ATTR{authorized}="0"

Basically, with the above setting you are disabling the Intel Bluetooth adapter.

edited Mar 30 '21 at 19:32

BeastOfCaerbannog

14,585

answered Mar 25 '21 at 23:26

StryKarr

11

I don't see to have a 81-bluetooth-hci.rules file in /etc/udev/rules.d/, should I create one? I only have rules for snap packages. – cyrusbehr Mar 26 '21 at 17:15

score 1 · Accepted Answer · answered Mar 26 '21 at 17:28

1

After trying many things, I was able to fully disable my Bluetooth by doing the following:

sudo vim /etc/modprobe.d/blacklist.conf

Then add the following line: blacklist btusb

Then finally reboot.

The Bluetooth no longer toggles on and off, and no longer consumes CPU - though this is not a great solution b/c it ultimately involves disabling the Bluetooth.

answered Mar 26 '21 at 17:28

cyrusbehr

315
1
4
14

Any workaround to a bug is considered "not a great solution". The real, ultimate solution is to get the bug fixed. One assumes you filed a proper bug report. None of the developers intended Bluetooth to not work. – user535733 Mar 28 '21 at 13:57

Bluetooth rapidly toggling on and off on MSI GE66 laptop running Ubuntu 20.10, using 100% of CPU

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