Wireless card not working

Hi everybody,

I am struggling with my wifi card with my first manjaro distro. Somehow my wifi card was detected and was working just fine but now it is not working anymore. The card is a Mediatek MT7921.
As you can see with this command it is not properly detected.

inxi -Fz                                                                                                                                                                                        
  Kernel: 5.15.19-1-MANJARO x86_64 bits: 64 Desktop: GNOME 41.3
    Distro: Manjaro Linux
  Type: Laptop System: ASUSTeK product: ROG Strix G513QC_PX513QC v: 1.0
    serial: <superuser required>
  Mobo: ASUSTeK model: G513QC v: 1.0 serial: <superuser required>
    UEFI: American Megatrends LLC. v: G513QC.303 date: 05/20/2021
  ID-1: BAT0 charge: 46.8 Wh (81.0%) condition: 57.8/56.0 Wh (103.2%)
    volts: 16.0 min: 15.9
  Info: 8-core model: AMD Ryzen 7 5800H with Radeon Graphics bits: 64
    type: MT MCP cache: L2: 4 MiB
  Speed (MHz): avg: 1693 min/max: 1200/4462 cores: 1: 1644 2: 2328 3: 2425
    4: 1802 5: 1453 6: 1608 7: 1825 8: 1198 9: 1197 10: 1197 11: 1197 12: 1197
    13: 1768 14: 2327 15: 2349 16: 1583
  Device-1: NVIDIA GA107M [GeForce RTX 3050 Mobile] driver: nvidia
    v: 510.47.03
  Device-2: AMD Cezanne driver: amdgpu v: kernel
  Display: x11 server: X.org driver: loaded: amdgpu,ati,nvidia
    unloaded: modesetting,nouveau,radeon resolution: <missing: xdpyinfo>
  Message: Unable to show advanced data. Required tool glxinfo missing.
  Device-1: NVIDIA driver: snd_hda_intel
  Device-2: AMD Renoir Radeon High Definition Audio driver: snd_hda_intel
  Device-3: AMD Raven/Raven2/FireFlight/Renoir Audio Processor driver: N/A
  Device-4: AMD Family 17h HD Audio driver: snd_hda_intel
  Sound Server-1: ALSA v: k5.15.19-1-MANJARO running: yes
  Sound Server-2: PulseAudio v: 15.0 running: yes
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    driver: r8169
  IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
  Device-2: MEDIATEK driver: N/A
  Device-1: IMC Networks Wireless_Device type: USB driver: btusb
  Report: rfkill ID: hci0 state: up address: see --recommends
  Local Storage: total: 476.94 GiB used: 18.43 GiB (3.9%)
  ID-1: /dev/nvme0n1 vendor: Intel model: SSDPEKNU512GZ size: 476.94 GiB
  ID-1: / size: 287.31 GiB used: 18.4 GiB (6.4%) fs: ext4 dev: /dev/nvme0n1p7
  ID-2: /boot/efi size: 256 MiB used: 29.9 MiB (11.7%) fs: vfat
    dev: /dev/nvme0n1p1
  Alert: No swap data was found.
  System Temperatures: cpu: 53.0 C mobo: N/A gpu: amdgpu temp: 48.0 C
  Fan Speeds (RPM): cpu: 0
  Processes: 361 Uptime: 15m Memory: 30.84 GiB used: 3.75 GiB (12.2%)
  Shell: Zsh inxi: 3.3.12

And with lspci, the model number is incorrect :

03:00.0 Network controller: MEDIATEK Corp. Device 7961
cat /etc/modprobe.d/mhwd-gpu.conf                                                                                                                                                                  
## Generated by mhwd - Manjaro Hardware Detection
blacklist nouveau
blacklist ttm
blacklist drm_kms_helper
blacklist drm
options nvidia "NVreg_DynamicPowerManagement=0x02"

Do you have any ideas on how to correct this ? I can provide more informations if necessary.


What about trying another kernel like 5.10 ?

Ok so I have found the solution. Since the wireless card is pretty recent, it still have some bugs. To reset the card on my Asus gaming laptop, I have hold the power button for 60 seconds.

Here is the post with the answer : (SOLVED) Wifi adaptator not found MediaTek Wi-Fi 6 MT7921 Wireless LAN Card | Page 2 | Linux.org

Thanks anyway for your answer andreas85.

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