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I have just installed Ubuntu 20.04 on my DELL 7240 and my WiFi adapter (Intel 7260) seems to be disabled.

I have tried different ways to enable it:

Edited the following file: sudo vi /etc/modprobe.d/iwlwifi.conf adding options iwlwifi 11n_disable=8, and then added also options iwlwifi 11n_disable=1. However, it didn't work after rebooting.

Continuing on reading from other posts, I have tried sudo apt install backport-iwlwifi-dkms which didn't work as well.

I have also downloaded the latest drivers for the Intel driver from https://anduin.linuxfromscratch.org/BLFS/linux-firmware and put under /lib/firmware/ directory, and then rebooted. Still, didn't work.

I have also tried to upgrade my kernel, and do update on everything. Still didn't work.

Output of lspci -knn | grep Net -A3; rfkill list :

02:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 73)
        Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:4470]
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi, wl
1:  phy0: Wireless LAN
         Soft blocked: no
         Hard blocked: yes
2:  dell-wifi: Wireless LAN
         Soft blocked: no
         Hard blocked: yes
3:  dell-bluetooth: Bluetooth
         Soft blocked: no
         Hard blocked: yes
4:  nfc0: NFC
         Soft blocked: no
         Hard blocked: no

The secure boot is disabled as well.

My kernel is 5.11.

Any ideas?

Regards, Evan

vag
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1 Answers1

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found on an old page https://dev.getsol.us/T3790 : add the intel_iommu=off kernel boot parameter in GRUB

Coco
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