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#1 2025-09-10 05:34:03

Firestar
Member
From: Beijing, China
Registered: 2021-07-19
Posts: 111
Website

[Solved] MT7922 No Bluetooth adapters found, unplug power can solve

This issue is different from last issue, 2 different computers, but both bluetooth issue

Operating System: Arch Linux 
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 6.16.5-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 9900X 12-Core Processor
Memory: 64 GiB of RAM (60.5 GiB usable)
Graphics Processor 1: NVIDIA GeForce RTX 4060 Ti/PCIe/SSE2
Graphics Processor 2: NVIDIA GeForce RTX 4060 Ti/PCIe/SSE2
Manufacturer: ASUS

After I installed bluetooth on this computer, the Bluetooth adapter is never found

I use TUF GAMING X670E-PLUS WIFI and it has a bluetooth hardware, I did not disable it at BIOS

0b:00.0 Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter

I have no `/sys/class/bluetooth` directory, lspci and dmesg have no output about bluetooth, and rfkill only returns wlan0

[firestar@Archlinux ~]$ sudo systemctl status bluetooth
○ bluetooth.service - Bluetooth service
     Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; preset: disabled)
     Active: inactive (dead)
       Docs: man:bluetoothd(8)

Sep 09 20:44:06 Archlinux systemd[1]: Bluetooth service was skipped because of an unmet condition check (ConditionPathIsDirectory=/sys/class/bluetooth).

[firestar@Archlinux ~]$ sudo dmesg | grep -i 'mt79\|bluetooth\|firmware'
[    3.593312] amdgpu 0000:11:00.0: amdgpu: [drm] Loading DMUB firmware via PSP: version=0x05002800
[    3.593502] amdgpu 0000:11:00.0: amdgpu: Found VCN firmware Version ENC: 1.33 DEC: 4 VEP: 0 Revision: 6
[   67.026655] systemd[1]: Clear Stale Hibernate Storage Info was skipped because of an unmet condition check (ConditionPathExists=/sys/firmware/efi/efivars/HibernateLocation-8cf2644b-4b0b-428f-9387-6d876050dc67).
[   67.151304] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[   67.310047] mt7921e 0000:0b:00.0: enabling device (0000 -> 0002)
[   67.314344] mt7921e 0000:0b:00.0: ASIC revision: 79220010
[   67.387754] mt7921e 0000:0b:00.0: HW/SW Version: 0x8a108a10, Build Time: 20250523103150a
[   67.402237] mt7921e 0000:0b:00.0: WM Firmware Version: ____000000, Build Time: 20250523103234
[   68.523165] mt7921e 0000:0b:00.0 wlp11s0: renamed from wlan0
[ 1884.117397] Bluetooth: Core ver 2.22
[ 1884.117420] NET: Registered PF_BLUETOOTH protocol family
[ 1884.117421] Bluetooth: HCI device and connection manager initialized
[ 1884.117424] Bluetooth: HCI socket layer initialized
[ 1884.117426] Bluetooth: L2CAP socket layer initialized
[ 1884.117427] Bluetooth: SCO socket layer initialized

[firestar@Archlinux ~]$ sudo rmmod mt7921e
[firestar@Archlinux ~]$ sudo modprobe mt7921e
[firestar@Archlinux ~]$ sudo dmesg | grep -i -E 'mt79|firmware' | tail -10
[   67.151304] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[   67.310047] mt7921e 0000:0b:00.0: enabling device (0000 -> 0002)
[   67.314344] mt7921e 0000:0b:00.0: ASIC revision: 79220010
[   67.387754] mt7921e 0000:0b:00.0: HW/SW Version: 0x8a108a10, Build Time: 20250523103150a
[   67.402237] mt7921e 0000:0b:00.0: WM Firmware Version: ____000000, Build Time: 20250523103234
[   68.523165] mt7921e 0000:0b:00.0 wlp11s0: renamed from wlan0
[ 2314.387552] mt7921e 0000:0b:00.0: ASIC revision: 79220010
[ 2314.460960] mt7921e 0000:0b:00.0: HW/SW Version: 0x8a108a10, Build Time: 20250523103150a
[ 2314.475653] mt7921e 0000:0b:00.0: WM Firmware Version: ____000000, Build Time: 20250523103234
[ 2315.589049] mt7921e 0000:0b:00.0 wlp11s0: renamed from wlan0

Also, this computer only has linux, there is no dual boot windows

Last edited by Firestar (2025-09-12 16:28:56)

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#2 2025-09-10 09:13:13

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,645

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

I have no `/sys/class/bluetooth` directory, lspci and dmesg have no output about bluetooth, and rfkill only returns wlan0

Please don't paraphrase, https://bbs.archlinux.org/viewtopic.php?id=57855

lspci -tvnn
lsusb -tv
rfkill

and please post your complete system journal for the boot: 

sudo journalctl -b | curl -F 'file=@-' 0x0.st

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

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#3 2025-09-10 10:05:14

Firestar
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From: Beijing, China
Registered: 2021-07-19
Posts: 111
Website

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

(base) [firestar@Archlinux ~]$ lspci -tvnn
-[0000:00]-+-00.0  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Root Complex [1022:14d8]
           +-00.2  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge IOMMU [1022:14d9]
           +-01.0  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
           +-01.1-[01]--+-00.0  NVIDIA Corporation AD106 [GeForce RTX 4060 Ti] [10de:2803]
           |            \-00.1  NVIDIA Corporation AD106M High Definition Audio Controller [10de:22bd]
           +-01.2-[02]----00.0  SK hynix Platinum P41/PC801 NVMe Solid State Drive [1c5c:1959]
           +-02.0  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
           +-02.1-[03-10]----00.0-[04-10]--+-00.0-[05]--
           |                               +-04.0-[06]--
           |                               +-08.0-[07-0e]----00.0-[08-0e]--+-00.0-[09]--
           |                               |                               +-04.0-[0a]----00.0  Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125]
           |                               |                               +-05.0-[0b]----00.0  MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter [14c3:0616]
           |                               |                               +-08.0-[0c]--
           |                               |                               +-0c.0-[0d]----00.0  Advanced Micro Devices, Inc. [AMD] 600 Series Chipset USB 3.2 Controller [1022:43f7]
           |                               |                               \-0d.0-[0e]----00.0  Advanced Micro Devices, Inc. [AMD] 600 Series Chipset SATA Controller [1022:43f6]
           |                               +-0c.0-[0f]----00.0  Advanced Micro Devices, Inc. [AMD] 600 Series Chipset USB 3.2 Controller [1022:43f7]
           |                               \-0d.0-[10]----00.0  Advanced Micro Devices, Inc. [AMD] 600 Series Chipset SATA Controller [1022:43f6]
           +-03.0  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
           +-04.0  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
           +-08.0  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
           +-08.1-[11]--+-00.0  Advanced Micro Devices, Inc. [AMD/ATI] Granite Ridge [Radeon Graphics] [1002:13c0]
           |            +-00.1  Advanced Micro Devices, Inc. [AMD/ATI] Radeon High Definition Audio Controller [Rembrandt/Strix] [1002:1640]
           |            +-00.2  Advanced Micro Devices, Inc. [AMD] Family 19h PSP/CCP [1022:1649]
           |            +-00.3  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge USB 3.1 xHCI [1022:15b6]
           |            +-00.4  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge USB 3.1 xHCI [1022:15b7]
           |            \-00.6  Advanced Micro Devices, Inc. [AMD] Family 17h/19h/1ah HD Audio Controller [1022:15e3]
           +-08.3-[12]----00.0  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge USB 2.0 xHCI [1022:15b8]
           +-14.0  Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b]
           +-14.3  Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e]
           +-18.0  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 0 [1022:14e0]
           +-18.1  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 1 [1022:14e1]
           +-18.2  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 2 [1022:14e2]
           +-18.3  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 3 [1022:14e3]
           +-18.4  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 4 [1022:14e4]
           +-18.5  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 5 [1022:14e5]
           +-18.6  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 6 [1022:14e6]
           \-18.7  Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 7 [1022:14e7]
(base) [firestar@Archlinux ~]$ lsusb -tv
/:  Bus 001.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/12p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    |__ Port 002: Dev 002, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        ID 046d:c077 Logitech, Inc. Mouse
    |__ Port 004: Dev 003, If 0, Class=Human Interface Device, Driver=usbhid, 12M
        ID 046d:c548 Logitech, Inc. Logi Bolt Receiver
    |__ Port 004: Dev 003, If 1, Class=Human Interface Device, Driver=usbhid, 12M
        ID 046d:c548 Logitech, Inc. Logi Bolt Receiver
    |__ Port 004: Dev 003, If 2, Class=Human Interface Device, Driver=usbhid, 12M
        ID 046d:c548 Logitech, Inc. Logi Bolt Receiver
/:  Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/5p, 20000M/x2
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 003.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/12p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    |__ Port 005: Dev 006, If 0, Class=Human Interface Device, Driver=usbhid, 12M
        ID 3554:fa09  
    |__ Port 005: Dev 006, If 1, Class=Human Interface Device, Driver=usbhid, 12M
        ID 3554:fa09  
    |__ Port 008: Dev 007, If 0, Class=Vendor Specific Class, Driver=[none], 12M
        ID 0b05:19af ASUSTek Computer, Inc. 
    |__ Port 008: Dev 007, If 2, Class=Human Interface Device, Driver=usbhid, 12M
        ID 0b05:19af ASUSTek Computer, Inc. 
/:  Bus 004.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/6p, 10000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 005.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 006.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 10000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 007.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 008.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 10000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 009.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/1p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 010.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/0p, 5000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
(base) [firestar@Archlinux ~]$ rfkill
ID TYPE DEVICE      SOFT      HARD
 0 wlan phy0   unblocked unblocked
(base) [firestar@Archlinux ~]$ sudo journalctl -b | curl -F 'file=@-' 0x0.st
http://0x0.st/Kb-C.txt

http://0x0.st/Kb-C.txt

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#4 2025-09-10 13:39:13

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,645

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

Sep 10 17:53:48 Archlinux kernel: usb 3-2: new high-speed USB device number 2 using xhci_hcd
Sep 10 17:53:48 Archlinux kernel: usb 3-2: device descriptor read/64, error -110
Sep 10 17:53:48 Archlinux kernel: usb 3-2: device descriptor read/64, error -110
Sep 10 17:53:48 Archlinux kernel: usb 3-2: new high-speed USB device number 3 using xhci_hcd
Sep 10 17:53:48 Archlinux kernel: usb 3-2: device descriptor read/64, error -110
Sep 10 17:53:48 Archlinux kernel: usb 3-2: device descriptor read/64, error -110
Sep 10 17:53:48 Archlinux kernel: usb 3-2: new high-speed USB device number 4 using xhci_hcd
Sep 10 17:53:48 Archlinux kernel: usb 3-2: Device not responding to setup address.
Sep 10 17:53:48 Archlinux kernel: usb 3-2: Device not responding to setup address.
Sep 10 17:53:48 Archlinux kernel: usb 3-2: device not accepting address 4, error -71
Sep 10 17:53:48 Archlinux kernel: usb 3-2: new high-speed USB device number 5 using xhci_hcd
Sep 10 17:53:48 Archlinux kernel: usb 3-2: Device not responding to setup address.
Sep 10 17:53:48 Archlinux kernel: usb 3-2: Device not responding to setup address.
Sep 10 17:53:48 Archlinux kernel: usb 3-2: device not accepting address 5, error -71

That's on the same bus as some "CX 2.4G Wireless Receiver" - is that some dongle for your wireless keyboard/mouse?
It's not the logitech on but 

    |__ Port 005: Dev 006, If 0, Class=Human Interface Device, Driver=usbhid, 12M
        ID 3554:fa09  
    |__ Port 005: Dev 006, If 1, Class=Human Interface Device, Driver=usbhid, 12M
        ID 3554:fa09

What if you remove that?

Have you tried to power-cycle the device (completely power it down, pot. even remove the battery, then restart it)?

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#5 2025-09-10 14:27:01

Firestar
Member
From: Beijing, China
Registered: 2021-07-19
Posts: 111
Website

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

1. Yes I have a 2.4G USB for my wireless keyboard, but after I remove it and restart the computer (now I use a wired keyboard) the bluetooth is still disabled

also my logitech mouse needs bluetooth so it is still essential

http://0x0.st/KbB3.txt

(base) [firestar@Archlinux ~]$ lsusb -tv
/:  Bus 001.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/12p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/5p, 20000M/x2
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 003.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/12p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    |__ Port 008: Dev 006, If 0, Class=Vendor Specific Class, Driver=[none], 12M
        ID 0b05:19af ASUSTek Computer, Inc. 
    |__ Port 008: Dev 006, If 2, Class=Human Interface Device, Driver=usbhid, 12M
        ID 0b05:19af ASUSTek Computer, Inc. 
/:  Bus 004.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/6p, 10000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 005.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 006.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 10000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 007.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 008.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 10000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 009.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/1p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 010.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/0p, 5000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub

2. this is a desktop computer, not a laptop with battery. I have tried to power-cycle the device (completely power it down, pot. even remove the battery, then restart it) and does nothing

Last edited by Firestar (2025-09-10 14:49:19)

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#6 2025-09-10 14:33:49

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,645

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

Boot https://grml.org/ - does the (any) bluetooth chip show up there?

Sep 10 22:17:57 Archlinux kernel: usb 3-2: new high-speed USB device number 2 using xhci_hcd
Sep 10 22:17:57 Archlinux kernel: usb 3-2: device descriptor read/64, error -110
Sep 10 22:17:57 Archlinux kernel: usb 3-2: device descriptor read/64, error -110
Sep 10 22:17:57 Archlinux kernel: usb 3-2: new high-speed USB device number 3 using xhci_hcd
Sep 10 22:17:57 Archlinux kernel: usb 3-2: device descriptor read/64, error -110
Sep 10 22:17:57 Archlinux kernel: usb 3-2: device descriptor read/64, error -110
Sep 10 22:17:57 Archlinux kernel: usb 3-2: new high-speed USB device number 4 using xhci_hcd
Sep 10 22:17:57 Archlinux kernel: usb 3-2: Device not responding to setup address.
Sep 10 22:17:57 Archlinux kernel: usb 3-2: Device not responding to setup address.
Sep 10 22:17:57 Archlinux kernel: usb 3-2: device not accepting address 4, error -71
Sep 10 22:17:57 Archlinux kernel: usb 3-2: new high-speed USB device number 5 using xhci_hcd
Sep 10 22:17:57 Archlinux kernel: usb 3-2: Device not responding to setup address.
Sep 10 22:17:57 Archlinux kernel: usb 3-2: Device not responding to setup address.
Sep 10 22:17:57 Archlinux kernel: usb 3-2: device not accepting address 5, error -71

is still acting up.
Can you reset the device after the boot and does it then respond?
https://serverfault.com/questions/11811 … thout-root

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#7 2025-09-10 14:55:20

Firestar
Member
From: Beijing, China
Registered: 2021-07-19
Posts: 111
Website

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

I unplugged the wired keyboard and mouse

shut down and restart the computer

then connect the computer via SSH

I edited the reply above

but still:

(base) [firestar@Archlinux ~]$ sudo systemctl status bluetooth
○ bluetooth.service - Bluetooth service
     Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; preset: disabled)
     Active: inactive (dead)
       Docs: man:bluetoothd(8)

Last edited by Firestar (2025-09-10 14:56:39)

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#8 2025-09-10 14:59:28

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,645

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

As long as not BT device is showing up on (likely) USB or PCI you don't have to check the service status.

seth wrote:

Boot https://grml.org/ - does the (any) bluetooth chip show up there?
Can you reset the device after the boot and does it then respond?

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

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#9 2025-09-11 19:56:39

zhihuiyuze
Member
Registered: 2022-12-27
Posts: 28
Website

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

Hi guys,

I think I have the same issue after the recently updated, I tried to roll back the kernel the issue still exists.

Here is the photo, I can’t upload the log since now there is no network.

68c328c134ad4.jpeg

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#10 2025-09-11 20:35:34

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,645

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

Please replace the oversized image w/ a thumbnail/link - the board has a 250x250 px max rule.
You're facing a different symptom, https://bbs.archlinux.org/viewtopic.php?id=292212 - completely power down the system, then reboot.
If there's a parallel windows, see the 3rd link below. Mandatory.
Disable it (it's NOT the BIOS setting!) and reboot windows and linux twice for voodo reasons.

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#11 2025-09-12 07:44:06

Firestar
Member
From: Beijing, China
Registered: 2021-07-19
Posts: 111
Website

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

https://paste.c-net.org/PruneElena

journalctl http://0x0.st/Kbxr.txt

lsusb https://0x0.st/Kbxz.txt

lspci https://0x0.st/Kbxi.txt

@seth no I think on grml there is still no bluetooth

I had installed an archlinux on this computer last year and the bluetooth was fine then

I don't know why it fails now

Last edited by Firestar (2025-09-12 08:00:06)

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#12 2025-09-12 07:54:12

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,645

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

Sep 12 07:36:29 grml kernel: usb 3-2: new high-speed USB device number 2 using xhci_hcd
Sep 12 07:36:29 grml kernel: usb 3-2: device descriptor read/64, error -110
Sep 12 07:36:29 grml kernel: usb 3-2: device descriptor read/64, error -110
Sep 12 07:36:29 grml kernel: usb 3-2: new high-speed USB device number 3 using xhci_hcd
Sep 12 07:36:29 grml kernel: usb 3-2: device descriptor read/64, error -110
Sep 12 07:36:29 grml kernel: usb 3-2: device descriptor read/64, error -110
Sep 12 07:36:29 grml kernel: usb 3-2: new high-speed USB device number 4 using xhci_hcd
Sep 12 07:36:29 grml kernel: usb 3-2: Device not responding to setup address.
Sep 12 07:36:29 grml kernel: usb 3-2: Device not responding to setup address.
Sep 12 07:36:29 grml kernel: usb 3-2: device not accepting address 4, error -71
Sep 12 07:36:29 grml kernel: usb 3-2: new high-speed USB device number 5 using xhci_hcd
Sep 12 07:36:29 grml kernel: usb 3-2: Device not responding to setup address.
Sep 12 07:36:29 grml kernel: usb 3-2: Device not responding to setup address.
Sep 12 07:36:29 grml kernel: usb 3-2: device not accepting address 5, error -71

Do you still have the journal of a boot when BT still worked (just to confirm its that device)

Can you strip the system of

Sep 12 07:36:29 grml kernel: usb 5-2: Product: Gaming Keyboard
Sep 12 07:36:29 grml kernel: usb 4-1: Product:  SanDisk 3.2Gen1
Sep 12 07:36:29 grml kernel: usb 3-3: Product: USB Optical Mouse
Sep 12 07:36:29 grml kernel: usb 3-8: Product: AURA LED Controller

resp. plug them elsewhere?
(Replace the g4m0rz keyboard w/ a $5 office supply variant, boot w/o mouse and the AURA thing and I guess the SanDisk was the grml usb key anyway?)

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#13 2025-09-12 08:05:25

Firestar
Member
From: Beijing, China
Registered: 2021-07-19
Posts: 111
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Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

> Do you still have the journal of a boot when BT still worked (just to confirm its that device)

No I re-installed it, all past data is gone, it is the same computer standing on my desk

AURA LED is an internal thing, which controls the light of CPU Fans

Keyboard is wired and it's fine (I will replug it elsewhere), I don't need the mouse because I find grml has no GUI, but I have no spare keyboard

Sandisk is grml USB key

---

https://0x0.st/Kbxm.txt only keyboard

Last edited by Firestar (2025-09-12 08:15:22)

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#14 2025-09-12 08:10:49

seth
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Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

I will replug it elsewhere)

No, rather keep it where it is (notably avoid attaching it to the BT hub)

AURA LED is an internal thing, which controls the light of CPU Fans

And I'm sure it's connected to an internal USB port w/ a cable?

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#15 2025-09-12 08:18:48

Firestar
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Registered: 2021-07-19
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Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

Yes AURA connected to an internal USB port w/ a cable

Now grml and keyboard is connected at the front

https://0x0.st/Kbxm.txt

Last edited by Firestar (2025-09-12 08:39:38)

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#16 2025-09-12 13:18:33

Firestar
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From: Beijing, China
Registered: 2021-07-19
Posts: 111
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Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

Is there a possibility that bluetooth has nothing to do with USB? the bluetooth is fixed on motherboard, not an external device connected by USB

https://www.asus.com/hk-en/motherboards … /techspec/

Last edited by Firestar (2025-09-12 13:18:45)

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#17 2025-09-12 14:18:06

seth
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Registered: 2012-09-03
Posts: 68,645

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

The BT chip is typically part of the wireless chip and usually wire via USB (which is a bus, not a plug)
Absent other information it's most likely the one

Sep 12 08:10:03 grml kernel: usb 3-2: device descriptor read/64, error -110
Sep 12 08:10:03 grml kernel: usb 3-2: device descriptor read/64, error -110
Sep 12 08:10:03 grml kernel: usb 3-2: new high-speed USB device number 4 using xhci_hcd
Sep 12 08:10:03 grml kernel: usb 3-2: device descriptor read/64, error -110
Sep 12 08:10:03 grml kernel: usb 3-2: device descriptor read/64, error -110
Sep 12 08:10:03 grml kernel: usb usb3-port2: attempt power cycle
Sep 12 08:10:03 grml kernel: usb 3-2: new high-speed USB device number 5 using xhci_hcd
Sep 12 08:10:03 grml kernel: usb 3-2: Device not responding to setup address.
Sep 12 08:10:03 grml kernel: usb 3-2: Device not responding to setup address.
Sep 12 08:10:03 grml kernel: usb 3-2: device not accepting address 5, error -71
Sep 12 08:10:03 grml kernel: usb 3-2: new high-speed USB device number 6 using xhci_hcd
Sep 12 08:10:03 grml kernel: usb 3-2: Device not responding to setup address.
Sep 12 08:10:03 grml kernel: usb 3-2: Device not responding to setup address.
Sep 12 08:10:03 grml kernel: usb 3-2: device not accepting address 6, error -71
Sep 12 08:10:03 grml kernel: usb usb3-port2: unable to enumerate USB device

that doesn't respond

Did you try to detach the AURA thing?

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#18 2025-09-12 16:20:45

Firestar
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From: Beijing, China
Registered: 2021-07-19
Posts: 111
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Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

No, I cannot break out the computer box, and the AURA lights are fine

I tried to search for that like https://bbs.archlinux.org/viewtopic.php?id=253704 but none of them help me

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#19 2025-09-12 16:27:21

Firestar
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From: Beijing, China
Registered: 2021-07-19
Posts: 111
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Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

OK, a Chinese article saved me

https://blog.csdn.net/qq_37689106/artic … s/99737524

That's a power cycle that's more drastic than a simple restart: shut down the computer, unplug the power cord from the desktop, wait a while, then plug it back in and turn the computer on.

http://0x0.st/Kb6I.txt

does my another issue related to this? https://bbs.archlinux.org/viewtopic.php?id=308168 reboot does not equal to shutdown?

Last edited by Firestar (2025-09-12 16:35:04)

Write programs that do one thing and do it well.
Write programs to work together.
Write programs to handle text streams, because that is a universal interface.

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#20 2025-09-12 18:52:58

seth
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From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,645

Re: [Solved] MT7922 No Bluetooth adapters found, unplug power can solve

does my another issue related to this?

seth wrote:

Have you tried to power-cycle the device (completely power it down, pot. even remove the battery, then restart it)?

I just didn't get that because this is a desktop you hadn't done the equivalent of removing the battery.
The reason why I suggested that is that this isn't an isolated incident - mediatek chips have this A LOT - so yes, you should absolutely test the same strategy on your other system.

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