Wi-Fi not working on my Acer laptop (MediaTek)

Hi,

I installed Manjaro on my Acer Aspire A315-24PT laptop, but the Wi-Fi doesn’t work.

Here’s what I got when I ran some system info commands:

  • Laptop: Acer Aspire A315-24PT
  • Wi-Fi chip: MediaTek MT7921E (shows as 14c3:7902)
  • Manjaro version: GNOME edition, Linux kernel 6.12.28-1
  • CPU: AMD Ryzen 5 7520U
  • Graphics: AMD Radeon 610M
  • Memory: 8 GB RAM

I tried installing firmware, but ran into a PGP key error and couldn’t finish.

Can someone please help me get the Wi-Fi working?

Thanks in advance!

System:
  Host: roshanpc Kernel: 6.12.28-1-MANJARO arch: x86_64 bits: 64
  Desktop: GNOME v: 48.1 Distro: Manjaro Linux
Machine:
  Type: Laptop System: Acer product: Aspire A315-24PT v: V1.11
    serial: <superuser required>
  Mobo: MDC model: Herbag_MDU v: V1.11 serial: <superuser required>
    UEFI: Insyde v: 1.11 date: 07/07/2023
Battery:
  ID-1: BAT1 charge: 38.2 Wh (100.0%) condition: 38.2/39.9 Wh (95.8%)
CPU:
  Info: quad core model: AMD Ryzen 5 7520U with Radeon Graphics bits: 64
    type: MT MCP cache: L2: 2 MiB
  Speed (MHz): avg: 1107 min/max: 400/4384 cores: 1: 1107 2: 1107 3: 1107
    4: 1107 5: 1107 6: 1107 7: 1107 8: 1107
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Mendocino driver: amdgpu
    v: kernel
  Device-2: Quanta ACER HD User Facing driver: uvcvideo type: USB
  Display: wayland server: X.org v: 1.21.1.16 with: Xwayland v: 24.1.6
    compositor: gnome-shell driver: gpu: amdgpu resolution: no compositor data
    resolution: 1920x1080
  API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.0.5-arch1.1
    renderer: AMD Radeon 610M (radeonsi raphael_mendocino LLVM 19.1.7 DRM 3.61
    6.12.28-1-MANJARO)
  Info: Tools: api: eglinfo,glxinfo x11: xprop
Audio:
  Device-1: Advanced Micro Devices [AMD/ATI] Rembrandt Radeon High Definition
    Audio driver: snd_hda_intel
  Device-2: Advanced Micro Devices [AMD] ACP/ACP3X/ACP6x Audio Coprocessor
    driver: snd_pci_acp6x
  Device-3: Advanced Micro Devices [AMD] Family 17h/19h/1ah HD Audio
    driver: snd_hda_intel
  API: ALSA v: k6.12.28-1-MANJARO status: kernel-api
  Server-1: PipeWire v: 1.4.2 status: active
Network:
  Device-1: MEDIATEK driver: N/A
  Device-2: Realtek RTL8153 Gigabit Ethernet Adapter driver: r8152 type: USB
  IF: enp3s0f4u2 state: up speed: 1000 Mbps duplex: full
    mac: 00:e0:4c:68:18:a9
Bluetooth:
  Device-1: IMC Networks Wireless_Device driver: btusb type: USB
  Report: rfkill ID: hci0 state: up address: see --recommends
Drives:
  Local Storage: total: 476.94 GiB used: 7.65 GiB (1.6%)
  ID-1: /dev/nvme0n1 vendor: Western Digital model: WD PC SN740
    SDDQNQD-512G-1014 size: 476.94 GiB
Partition:
  ID-1: / size: 476.64 GiB used: 7.65 GiB (1.6%) fs: btrfs dev: /dev/nvme0n1p2
  ID-2: /boot/efi size: 299.4 MiB used: 616 KiB (0.2%) fs: vfat
    dev: /dev/nvme0n1p1
  ID-3: /home size: 476.64 GiB used: 7.65 GiB (1.6%) fs: btrfs
    dev: /dev/nvme0n1p2
  ID-4: /var/log size: 476.64 GiB used: 7.65 GiB (1.6%) fs: btrfs
    dev: /dev/nvme0n1p2
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 51.8 C mobo: N/A gpu: amdgpu temp: 46.0 C
  Fan Speeds (rpm): N/A
Info:
  Memory: total: 8 GiB note: est. available: 7 GiB used: 2.48 GiB (35.4%)
  Processes: 338 Uptime: 1h 4m Shell: Zsh inxi: 3.3.38

A generic search for linux driver MT7921E show the hardware as a challenge.

Please see [Solved] No WiFi with the Mediatek MT7922 adapter and MT7921e driver / Kernel & Hardware / Arch Linux Forums

And forum topics

Search results for 'mt7921e order:latest' - Manjaro Linux Forum

AUR search for ‘mt79’

The only package I could locate with AUR is the mt76-dkms-git (upstream GitHub - openwrt/mt76: mac80211 driver for MediaTek MT76x0e, MT76x2e, MT7603, MT7615, MT7628 and MT7688)

[root tip] [How To] Kernel - Headers - DKMS
[Need-To-Know] About Manjaro and AUR

//EDIT: 2025-06-05T06:02:00Z

The linux hardware database is just confirming this specific hardware id to be a real challenge as it is not working for any of the distributions in the database.

You may also try sync the Linux 6.15 kernel and reboot to learn if the specific card has been added to the in-kernel drivers.

sudo mhwd-kernel -i linux615

For mobility - this is a real issue - the only way is to hunt down a USB dongle device known to work with Linux.

There is github page assembling information GitHub - morrownr/USB-WiFi: USB WiFi Adapter Information for Linux

https://alfa-network.eu/wi-fi/kali-linux-compatible

The following https://alfa-network.eu/wi-fi/kali-linux-compatible/awus036acs is known to work OOB with Manjaro with Linux 6.15

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Get yourself an ethernet cable and install again via the Ethernet. This will let the OS installer do the work of finding and lnstalling the proper driver. You may need to run a firmware install command later.

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