claydoh wrote:

So... lspci detects a network controller.

So.... what does it show, exactly? Does it show the wireless card, or just an Ethernet one?

paste the lspci output, and we should be able to tell.

After installing kubuntu at first and getting the same problem

Note that Neon is the same as Ubuntu/Kubuntu 20.04, so this is not unexpected.

Probably the card you have needs non-free drivers, or ones that are not allowed to be distributed etc etc, or is simply not yet supported in the Ubuntu 20.04 kernel you are running. Though there may be drivers available outside of software repos or it may be one of those that are simply a PITA to set up.

After posting the lspci info, the second thing to check is if there are non-free type drivers for your card. You can do this on the command line

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ubuntu-drivers devices

If anything is available, it will show you the package needed to install.

Here is mine as an example:

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$ ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0 ==
modalias : pci:v000010ECd0000C821sv0000103Csd0000831Abc02sc80i00
vendor   : Realtek Semiconductor Co., Ltd.
model    : RTL8821CE 802.11ac PCIe Wireless Network Adapter
driver   : rtl8821ce-dkms - distro free

This tells me that rtl8821ce-dkms is what I need to install to get the wifi drivers for my card.

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sudo apt install rtl8821ce-dkms

(note that someone may say 'just use the command

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sudo ubuntu-drivers autoinstall

', but this is deprecated, and does not always work.)


But do post your wifi card's info, and we should be able to narrow things down, hopefully it is an easy one.

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sudo ubuntu-drivers autoinstall