Hi everyone,
I recently installed Ubuntu 24.04 (Noble Numbat) on my Fujitsu LIFEBOOK, wiping Windows completely in the process. Everything works except for the Wi-Fi. My Intel wireless card (Intel Dual Band Wireless-AC 8265) is detected but shown as UNCLAIMED under lshw -c network, and no wireless interfaces show up in iwconfig or the network settings.
From your lshw -c network and dmesg logs, the root issue is:
iwlwifi: probe of 0000:04:00.0 failed with error -110
This typically means that the system timed out trying to initialize the Intel wireless hardware — either due to:
PCIe power management (autosuspend) issues
Firmware issues
Kernel compatibility issues
Step 1: Update the firmware
Use a temporary internet connection (e.g., Ethernet or phone USB tethering), then run:
sudo apt update
sudo apt install --reinstall linux-firmware
Also, update the iwlwifi firmware manually just in case:
wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/iwlwifi-8265-36.ucode -O iwlwifi-8265-36.ucode
sudo cp iwlwifi-8265-36.ucode /lib/firmware/
sudo update-initramfs -u
If version 36 doesn't work, try 34 or 31 — you can download from the same Git tree by changing the version number.
Then reboot.
Step 2: Disable PCIe ASPM (power saving) for that device
Edit the GRUB configuration:
sudo nano /etc/default/grub
Find the line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
Change it to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=off"
Then update GRUB and reboot:
sudo update-grub
sudo reboot
Step 3: Manually load the driver
After reboot, try manually loading the module:
sudo modprobe -r iwlwifi
sudo modprobe iwlwifi
Then check if it's recognized:
lshw -c network
Step 4: Check kernel compatibility
You're running kernel 5.8, which is EOL (end of life) for Ubuntu and might have bugs affecting iwlwifi.
Try installing the 5.4 LTS kernel (which is more stable for many Intel cards):
sudo apt install linux-image-5.4.0-148-generic linux-headers-5.4.0-148-generic
Then reboot and select the 5.4 kernel from the GRUB boot menu (hold Shift during boot).
Run:
sudo lspci -vnn -s 04:00.0
Check if it's in D3 (sleep) state. If so, the OS can't access the device. A workaround is to disable runtime power management or blacklist autosuspend for the card.
Try in this order:
Reinstall firmware (linux-firmware, iwlwifi-8265-*.ucode)
Set pcie_aspm=off in GRUB
Downgrade to kernel 5.4
Load module manually
If the card still shows UNCLAIMED, there may be a deeper BIOS/UEFI or hardware issue (especially if the card isn’t showing as a Wireless interface, even with the driver loaded).
Let me know what you see after these steps — we can go deeper from there.
Source: Solution generated from https://chatgpt.com. Firmware update solution was applied and it worked. (Step 1 and Step 2)