Intel wireless AC 8265 not detected

jakobcreutzfeldt · 2025-07-13 10:43:22

After updating a system that went a few months without use, the Intel wireless card is no longer detected.

Old boot log:

$ journalctl -b -10 | grep -i wifi
Jul 09 19:58:51 jackalope kernel: Intel(R) Wireless WiFi driver for Linux
Jul 09 19:58:51 jackalope kernel: iwlwifi 0000:06:00.0: enabling device (0000 -> 0002)
Jul 09 19:58:51 jackalope kernel: iwlwifi 0000:06:00.0: Detected crf-id 0xbadcafe, cnv-id 0x10 wfpm id 0x80000000
Jul 09 19:58:51 jackalope kernel: iwlwifi 0000:06:00.0: PCI dev 24fd/1010, rev=0x230, rfid=0xd55555d5
Jul 09 19:58:51 jackalope kernel: iwlwifi 0000:06:00.0: Detected Intel(R) Dual Band Wireless AC 8265
Jul 09 19:58:51 jackalope kernel: iwlwifi 0000:06:00.0: loaded firmware version 36.ca7b901d.0 8265-36.ucode op_mode iwlmvm
Jul 09 19:58:51 jackalope kernel: iwlwifi 0000:06:00.0: base HW address: 00:28:f8:0e:4e:7b, OTP minor version: 0x0
Jul 09 19:58:51 jackalope kernel: iwlwifi 0000:06:00.0 wlp6s0: renamed from wlan0
Jul 09 19:58:52 jackalope NetworkManager[486]: <info>  [1752087532.4202] rfkill1: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.7/0000:06:00.0/ieee80211/phy0/rfkill1) (driver iwlwifi)
Jul 09 19:58:52 jackalope NetworkManager[486]: <info>  [1752087532.4298] Loaded device plugin: NMWifiFactory (/usr/lib/NetworkManager/1.50.3-1/libnm-device-plugin-wifi.so)

Current boot log:

$ journalctl -b | grep -i wifi
Jul 13 11:31:36 jackalope NetworkManager[489]: <info>  [1752402696.3322] Loaded device plugin: NMWifiFactory (/usr/lib/NetworkManager/1.52.1-1/libnm-device-plugin-wifi.so)

With respect to the June 21, 2025 news item, the Intel firmware is installed:

$ pacman -Qs linux-firmware-intel
local/linux-firmware-intel 20250708-1
    Firmware files for Linux - Firmware for Intel devices

(I installed the whole linux-firmware package)

Dowgrading to linux-firmware-intel 20250627-1 did not resolve the issue.

The card is not detected:

$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 05)
00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 05)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller
00:14.2 Signal processing controller: Intel Corporation 200 Series PCH Thermal Subsystem
00:16.0 Communication controller: Intel Corporation 200 Series PCH CSME HECI #1
00:17.0 SATA controller: Intel Corporation 200 Series PCH SATA controller [AHCI mode]
00:1b.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #21 (rev f0)
00:1c.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #5 (rev f0)
00:1c.7 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root Port #8 (rev f0)
00:1f.0 ISA bridge: Intel Corporation 200 Series PCH LPC Controller (H270)
00:1f.2 Memory controller: Intel Corporation 200 Series/Z370 Chipset Family Power Management Controller
00:1f.3 Audio device: Intel Corporation 200 Series PCH HD Audio
00:1f.4 SMBus: Intel Corporation 200 Series/Z370 Chipset Family SMBus Controller
01:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Vega 10 PCIe Bridge (rev c3)
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Vega 10 PCIe Bridge
03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 XL/XT [Radeon RX Vega 56/64] (rev c3)
03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 HDMI Audio [Radeon Vega 56/64]
04:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961/SM963
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 15)

There are no messages from dmesg about wifi or about any firmware errors.

Obviously given the above,

iw list

prints nothing.

I assume something got messed up in the firmware split but I'm blanking on any possible resolution. Any thoughts on how to get the wifi chip back up and running? Thanks!

seth · 2025-07-13 13:32:46

There are no messages from dmesg about wifi or about any firmware errors.

Then we shall have a look at the errors that are actually here.
Please post your complete system journal for the boot:

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

ceterum censeo: parallel windows? => 3rd link below. Mandatory.
Disable it (it's NOT the BIOS setting!) and reboot windows and linux twice for voodo reasons.

Dowgrading to linux-firmware-intel 20250627-1 did not resolve the issue.

No, won't - as long as the NIC doesn't even show up on the bus the only thing that might be remotely, on an off-chance, be relevant is the kernel itself.
Can you btw. disable/toggle the NIC in the UEFI?

Edit:

I assume something got messed up in the firmware split

This is not a firmware issue, the NIC has to show up in lspci for the iwlwifi moduleto be loaded and the module then loads the firmware.
As long as the NIC doesn't show up on the bus, everything else becomes a non-issue.

Last edited by seth (2025-07-13 13:34:19)

Arch Linux

#1 2025-07-13 10:43:22

Intel wireless AC 8265 not detected

#2 2025-07-13 13:32:46

Re: Intel wireless AC 8265 not detected

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