Realtek Wifi-adapter not found on ubuntu 20.04 install

shulnak09

7/12/24, 3:46 AM

I recently got a laptop (lenovo legion pro 5). After dual booting with linux 20.04.6 LTS, my system does not detect any wifi adapter. So, I followed the common steps that I mostly found for addressing wifi not found issue for realtek wifi-adapters on this forum as below:

sudo apt update 
sudo apt -y install git build-essential linux-headers-generic
git clone https://github.com/lwfinger/rtw89.git
cd rtw89
make
sudo make install
sudo modprobe rtw89pci

Even after following the steps, I get the following error:

anshul@anshul-Legion-Pro:~$  sudo dmesg | grep -e 8852 -e rtw
[    1.513903] rtw89core: loading out-of-tree module taints kernel.
[    1.514008] rtw89core: module verification failed: signature and/or required key missing - tainting kernel
[    1.583389] rtw89_8852ce 0000:04:00.0: Direct firmware load for rtw89/rtw8852c_fw.bin failed with error -2
[    1.583392] rtw89_8852ce 0000:04:00.0: failed to early request firmware: -2
[    1.583463] rtw89_8852ce 0000:04:00.0: Direct firmware load for rtw89/rtw8852c_fw.bin failed with error -2
[    1.584192] rtw89_8852ce 0000:04:00.0: failed to wait firmware completion
[    1.584212] rtw89_8852ce 0000:04:00.0: failed to setup chip information
[    1.584465] rtw89_8852ce: probe of 0000:04:00.0 failed with error -22
[    2.517580] Bluetooth: hci0: RTL: examining hci_ver=0c hci_rev=000c lmp_ver=0c lmp_subver=8852
[    2.517583] Bluetooth: hci0: RTL: unknown IC info, lmp subver 8852, hci rev 000c, hci ver 000c

Can anyone please help me with this issue?

Regards Anshul

0 + 2

wireless

realtek-wireless

20.04

guiverc

7/12/24, 5:33 AM

You've not provided details as to what Ubuntu 20.04.6 LTS product you installed (*thus we don't know what stack you're using, as different product/ISOs default to different stacks*) so please be specific. Were there errors in the second command you provided (*accepting before you read due to `-y`*) as you may not have included all required packages to switch to the GA kernel stack if that was what you attempted to do (*your kernel stack is unknown as you didn't specify, nor provide product details*). I'd suggest reading the output of the commands you provided.

chili555

7/12/24, 12:17 PM

I believe the README that is included in the rtw89 directory explains how to download and install the required firmware. Do you need a step-by-step? Welcome to Ask Ubuntu.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Realtek Wifi-adapter not found on ubuntu 20.04 install

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.