[SOLVED] Bluetooth freezes the boot process

tredegar · 10-27-2021, 09:42 AM

I have a Lenovo Thinkpad T15 Gen2 20W4000NUK laptop. It's about 5 months old. It works fine for what I need.
I have not used windows since 1998, so I tried to install Debian10 when I bought it, but there were multiple failures. So I tried Ubuntu 20.04 [kernel 5.11.0-38-generic] and.. . it worked!
But I really don't like Ubuntu (long story) and am trying to get Debian11 [kernel 5.10.0-9.amd64] installed. I downloaded debian-live-11.1.0-amd64-gnome+nonfree.iso which is supposed to have the firmware blobs for closed-source hardware and booted from it.
The installation process went fine, the problem starts when I try to boot Debian11.

The boot process stalls with

Reached target Bluetooth...
Intel read version failed (-22)

repeated forever, and I have to power it off.

My bluetooth chipset is Intel:
(This listing was generated whilst I was running Ubuntu)

Code:

tred@lenovot:~$ hwinfo --bluetooth
07: USB 00.0: 11500 Bluetooth Device                            
  [Created at usb.122]
  Unique ID: t1E6.TVFYDojFh73
  Parent ID: uIhY.2DFUsyrieMD
  SysFS ID: /devices/pci0000:00/0000:00:14.0/usb3/3-10/3-10:1.0
  SysFS BusID: 3-10:1.0
  Hardware Class: bluetooth
  Model: "Intel Bluetooth Device"
  Hotplug: USB
  Vendor: usb 0x8087 "Intel Corp."
  Device: usb 0x0032 
  Driver: "btusb"
  Driver Modules: "btusb"
  Speed: 12 Mbps
  Module Alias: "usb:v8087p0032d0000dcE0dsc01dp01icE0isc01ip01in00"
  Driver Info #0:
    Driver Status: btusb is active
    Driver Activation Cmd: "modprobe btusb"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #5 (Hub)
tred@lenovot:~$

So, I would like to disable bluetooth at boot for Debian11.

If I could boot to a terminal I could try systemctl disable bluetooth.service but the boot process stalls before I can get to a terminal.

I have tried mounting the Debian11 partition and renaming /usr/lib/systemd/system/bluetooth.service to /usr/lib/systemd/system/bluetooth.service.disabled and renaming /etc/systemd/system/dbus-org.bluez.service (which is a link to the above) to /etc/systemd/system/dbus-org.bluez.service.disabled but I still get the same error messages at boot, and have to power it off.

I have tried to disable bluetooth in the UEFI "BIOS" but there is no such option.

Is there something I can pass to the kernel via grub, that'll disable any attempts to install bluetooth stuff?

EDIT An update:
If I wait several minutes, I can eventually log into gnome, and open a terminal.
I did systemctl disable bluetooth.service (as root), applied all the updates (mainly openoffice stuff) and rebooted.
The problem still exists.

Any suggestions welcome. I hate bluetooth, and don't need it at all.
/EDIT

pan64 · 10-27-2021, 10:57 AM

I'm not really sure if it was bluetooth related. see for example here: https://www.reddit.com/r/NixOS/comme...shly_finished/

RebeccaHill · 10-27-2021, 11:03 AM

Nice update as usual. Thank you so much for sharing this information.

tredegar · 10-27-2021, 11:26 AM

Progress, at last.

I saw this in Debian's /var/log/kern.log repeated again and again.

Code:

Oct 27 15:59:11 lenovo kernel: [  631.440594] usb 3-10: USB disconnect, device number 84
Oct 27 15:59:12 lenovo kernel: [  631.877382] usb 3-10: new full-speed USB device number 85 using xhci_hcd
Oct 27 15:59:12 lenovo kernel: [  632.027682] usb 3-10: New USB device found, idVendor=8087, idProduct=0032, bcdDevice= 0.00
Oct 27 15:59:12 lenovo kernel: [  632.027686] usb 3-10: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Oct 27 15:59:12 lenovo kernel: [  632.031157] Bluetooth: hci0: Reading Intel version information failed (-22)
Oct 27 15:59:12 lenovo kernel: [  632.031166] Bluetooth: hci0: Intel Read version failed (-22)
Oct 27 15:59:12 lenovo kernel: [  632.031225] Bluetooth: hci0: Intel reset sent to retry FW download
Oct 27 15:59:12 lenovo kernel: [  632.031929] usb 3-10: USB disconnect, device number 85

So, maybe it's a firmware version problem? Ubuntu's kernel is a little newer than Debian's, but firmware is firmware, right?
I did mv Debian11:/lib/firmware Debian11:/lib/firmware.Deb and then cp -a Ubuntu:/usr/lib/firmware Debian:/usr/lib/

Rebooted Debian11 and success! Fast boot, no error messages.

I don't know which exactly of all those firmware blobs was at fault, but the problem is solved for now.
Thanks for your interest.
Hope I can now work out how to mark this as solved...