u/Wild-Bullfrog4988

Problema com Notebook + Debian

Sempre tive um problema com Linux em meu Note, eu abaixo a tampa para ir em uma sala de reunião, simplesmente o KERNEL para. (onde ainda preciso do windows como backup)

Serio, da um erro entre minha RTX 3050 e meu Kernel de dar pau mesmo.

Estava usando Debian, vou retornar ao Fedora mas como evitar isso ?

Timeshift sei que ajuda a recuperar, etc.

Meu note é um NITRO V15 I7 com RTX

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u/Wild-Bullfrog4988 — 1 day ago

Bluetooth da MediaTek MT7921 em loop (liga/desliga) no Debian 13 - No default controller available

Fala galera, beleza?

Estou enfrentando um problema bem chato com o Bluetooth no Debian 13 (Trixie). O rádio fica ligando e desligando sozinho em um loop infinito pela interface gráfica, e o bluetoothctl simplesmente não encontra o adaptador.

Aqui estão as especificações do meu sistema e hardware:

  • SO: Debian 13 (Trixie) amd64
  • Kernel: 6.12.88+deb13-amd64
  • Placa Wi-Fi/Bluetooth: MediaTek MT7921 (Chip combo)

O Problema:

Quando tento usar o bluetoothctl, o agente é registrado, mas o sistema não encontra o hardware padrão:

$ bluetoothctl

Agent registered

[bluetoothctl]> power on

Logs do Sistema (dmesg):

No default controller available

Analisando o dmesg, o kernel inicializa o subsistema de Bluetooth normalmente, mas a comunicação (handshake) com o chip da MediaTek falha logo em seguida com o erro -22 (Argumento inválido). Isso parece derrubar o controlador HCI do barramento:

Plaintext

[    5.514898] Bluetooth: Core ver 2.22
[    5.514920] NET: Registered PF_BLUETOOTH protocol family
[    5.514922] Bluetooth: HCI device and connection manager initialized
[    5.514925] Bluetooth: HCI socket layer initialized
[    5.514928] Bluetooth: L2CAP socket layer initialized
[    5.514932] Bluetooth: SCO socket layer initialized
[    5.578025] Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time: 20241106151414
[    5.699529] Bluetooth: hci0: Failed to send wmt func ctrl (-22)
[    5.699549] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported.
[    5.768796] mt7921e 0000:3f:00.0: WM Firmware Version: ____010000, Build Time: 20241106151045
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u/Wild-Bullfrog4988 — 2 days ago
▲ 5 r/debian

MediaTek MT7921 Bluetooth loops on/off on Debian 13 (Trixie) - No default controller available

Hey everyone,

I'm having a frustrating issue with my Bluetooth on Debian 13 (Trixie). The Bluetooth toggle in the GUI just loops on and off, and bluetoothctl can't find any adapter.

Here are my system specs and hardware details:

  • OS: Debian 13 (Trixie) amd64
  • Kernel: 6.12.88+deb13-amd64
  • Wi-Fi/Bluetooth Card: MediaTek MT7921 (Combo chip)

The Problem:

When checking bluetoothctl, it registers the agent but fails to find the hardware:

$ bluetoothctl

Agent registered

[bluetoothctl]> power on

No default controller available

Logs (dmesg output):

Looking at dmesg, the kernel initializes the subsystem but the handshake with the MediaTek chip fails right after with error -22 (Invalid argument), which seems to completely drop the HCI controller from the bus:
[ 5.514898] Bluetooth: Core ver 2.22

[ 5.514920] NET: Registered PF_BLUETOOTH protocol family

[ 5.514922] Bluetooth: HCI device and connection manager initialized

[ 5.514925] Bluetooth: HCI socket layer initialized

[ 5.514928] Bluetooth: L2CAP socket layer initialized

[ 5.514932] Bluetooth: SCO socket layer initialized

[ 5.578025] Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time: 20241106151414

[ 5.699529] Bluetooth: hci0: Failed to send wmt func ctrl (-22)

[ 5.699549] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported.

[ 5.768796] mt7921e 0000:3f:00.0: WM Firmware Version: ____010000, Build Time: 20241106151045

The bluetooth.service via systemd starts normally, but throws a small permission warning:

(uetoothd)[932]: bluetooth.service: ConfigurationDirectory 'bluetooth' already exists but the mode is different. (File system: 755 ConfigurationDirectoryMode: 555)

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u/Wild-Bullfrog4988 — 2 days ago