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I have a newly refurbished HP laptop:

HP HP ZBook 14u G5 Intel® Core™ i7-8650U CPU @ 1.90GHz × 8 AMD® Radeon pro wx 3100 / Mesa Intel® UHD Graphics 620 (KBL GT2)

I did a clean install of Ubuntu 22.04.2 LTS, with kernel version: 5.19.0-42-generic

And I discover that the computer does not see the wifi adapter. Here is the result of doing lshw – C network:

WARNING: you should run this program as super-user.
  *-network UNCLAIMED       
       description: Network controller
       product: Wireless 8265 / 8275
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 78
       width: 64 bits
       clock: 33MHz
       capabilities: cap_list
       configuration: latency=0
       resources: memory:ba200000-ba201fff
  *-network
       description: Ethernet interface
       product: Ethernet Connection (4) I219-LM
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 21
       serial: b4:b6:86:8e:d8:17
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=5.19.0-42-generic firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:127 memory:ba400000-ba41ffff
  *-network
       description: Ethernet interface
       physical id: e
       bus info: usb@1:2
       logical name: enx025263346633
       serial: 02:52:63:34:66:33
       capabilities: ethernet physical
       configuration: autonegotiation=off broadcast=yes driver=rndis_host driverversion=5.19.0-42-generic duplex=half firmware=RNDIS device ip=192.168.42.239 link=yes multicast=yes port=twisted pair
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

I updated and upgraded Ubuntu, and then followed the instructions on this page to install the intel driver (iwlwifi-8265-22.ucode):

https://www.linuxfordevices.com/tutorials/ubuntu/no-wi-fi-adapter-found-error

Still doesn’t work.

(New edit to my question). I found a question on Ask Ubuntu that looked like mine, involving the same intel wifi firmware:

(WiFi not working after upgrading to 22.04)

In this person's case purging the backports solved the problem. In my case, the backports are not on the computer:

sudo apt purge backport-iwlwifi-dkms  
Reading package lists... Done  
Building dependency tree... Done  
Reading state information... Done  
Package 'backport-iwlwifi-dkms' is not installed, so not removed  
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded

Could this be the problem? Also what is a backport?

When I do sudo dmesg | grep iwl

I get the following message:

[    3.033851] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)  
[    3.754261] iwlwifi: probe of 0000:02:00.0 failed with error -110

Finally, per comment below, here is the the output from rfkill list all

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

The output from lspci -vvnn | grep -A 9 Network is

02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)  
Subsystem: Intel Corporation Dual Band Wireless-AC 8265 [8086:0010]  
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-  
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-  
Interrupt: pin A routed to IRQ 19  
Region 0: Memory at ba200000 (64-bit, non-prefetchable) [size=8K]  
Capabilities: <access denied>  
Kernel modules: iwlwifi  
3c:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 [144d:a808] (prog-if 02 [NVM Express])

I have read through multiple different sites now and I see that there are apparently a lot of network connectivity issues with Ubuntu 22. I would not describe myself as a superuser, but I’ve been using earlier versions of Ubuntu for years, and never encountered problems like this. Also, I know that the wifi adapter works, because the computer originally came with Windows 10 and the wifi worked without a problem (This is how I downloaded the ISO for Ubuntu). Also just to confirm from the discussion in the comments, airplane mode is off.

Can anyone provide some help here?

Kuns
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1 Answers1

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As @Kuns said in his last comment, turning my Wi-Fi off and on in the BIOS did the trick for me too on my DELL Latitude 5490 - a completely different device. I thought it was a tad ridiculous, but hell, what did I have to lose.

I first turned everything Wi-Fi related off, then saved the settings. Then I turned everything Wi-Fi related back on, saved the settings again, and after a reboot, lo and behold, my Wi-Fi was working too. Beyond bewildered this actually worked, thanks a bunch!

BeastOfCaerbannog
  • 16,703
Marek Lochman
  • 11