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As I mentioned here my wireless connection is not working. After making some changes to the firmware according to the support of some community members I ended up with the following output:

sudo dmesg | grep iwlwifi outputs:

[    3.373741] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[    3.381121] iwlwifi: No config found for PCI dev 02f0/0000, rev=0x354, rfid=0x0
[    3.381223] iwlwifi: probe of 0000:00:14.3 failed with error -22

I noticed that the last numbers of the Subsystem entry changed according to the last time I ran lspci -kvnn | sed -n '/Network/,/^$/ p'. It now returns

00:14.3 Network controller [0280]: Intel Corporation Wireless-AC 9462 [8086:02f0]
    DeviceName: Onboard - Ethernet
    Subsystem: Intel Corporation Wireless-AC 9462 [8086:0000]
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at c431c000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel modules: iwlwifi

Does anybody have a clue how I could proceed to get wireless connection again? I would also be willing to format my the whole system if necessary. However as I tried installing an 18.04 Ubuntu version alongside my 20.04 one already without any improvement I'm not sure if that helps...

EDIT (replying to @nobody comment)

dkms status

backport-iwlwifi, 8324: added
virtualbox, 6.1.26, 5.11.0-38-generic, x86_64: installed
virtualbox, 6.1.26, 5.14.14-051414-generic, x86_64: installed
virtualbox, 6.1.26, 5.4.0-89-generic, x86_64: installed

uname -r : 5.14.14-051414-generic

rfkill list

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

grep -i error /var/log/kern.log -> External file link Here there are definitely some alarming messages like

Oct 24 19:57:22 angelo-P15648 kernel: [14072.342831] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
Oct 24 19:57:22 angelo-P15648 kernel: [14072.342920] iwlwifi 0000:00:14.3: 0xE0000021 | FSEQ_ERROR_CODE
Oct 24 19:57:22 angelo-P15648 kernel: [14072.343325] iwlwifi 0000:00:14.3: Firmware error during reconfiguration - reprobe!
Oct 24 19:57:22 angelo-P15648 kernel: [14072.343674] iwlwifi 0000:00:14.3: FW error in SYNC CMD MAC_CONTEXT_CMD
Oct 24 19:57:22 angelo-P15648 kernel: [14072.345211] iwlwifi 0000:00:14.3: Hardware error detected. Restarting.

Edit 2 (replying to @chili555)

It is not a dual boot. Only systems installed are Ubuntu.

You assumed the kernel version correctly. uname -r outputs 5.14.14-051414-generic

dmesg | grep iwl outputs:

[    2.794034] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[    2.797944] iwlwifi: No config found for PCI dev 02f0/0000, rev=0x354, rfid=0x0
[    2.798042] iwlwifi: probe of 0000:00:14.3 failed with error -22

I removed backport from dkms tree using sudo dkms remove backport-iwlwifi/8324 --all

dkms status now returns

virtualbox, 6.1.26, 5.11.0-38-generic, x86_64: installed
virtualbox, 6.1.26, 5.14.14-051414-generic, x86_64: installed
virtualbox, 6.1.26, 5.4.0-89-generic, x86_64: installed

Edit 3 (replying to @chili555)

Testing with kernel version 5.4.0-89-generic

dmesg | grep iwl does not return anything...

dkms status returns

virtualbox, 6.1.26, 5.11.0-38-generic, x86_64: installed
virtualbox, 6.1.26, 5.14.14-051414-generic, x86_64: installed
virtualbox, 6.1.26, 5.4.0-89-generic, x86_64: installed
angelogro
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0 Answers0