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I have a dual boot with Ubuntu 22.04 and Windows 11 freshly installed, but my Wi-Fi is not working. It states that "No Wi-Fi Adapter Found". The card is a Realtek RTL8852BE WiFi 6 802.11ax.

The result of terminal command lspci -nnk | grep 0280 -A3 is:

01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b852]
    DeviceName: Realtek Wireless LAN + BT
    Subsystem: Hewlett-Packard Company Device [103c:88e3]
02:00.0 Non-Volatile memory controller [0108]: Micron Technology Inc Device [1344:5404] (rev 03)

My laptop has an AMD Ryzen 7 5825U processor and AMD Radeon graphics. Any help will be greatly appreciated.

BeastOfCaerbannog
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miks
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  • For informational purposes I wonder if you could tell me what laptop brand and model number this issue relates to. I am considering making a new purchase for my significant other and wish to avoid these issues if possible. I've been through a wifi driver conflict once before, it could be pertinent to many others in the future. Thank you :) perhaps add it to the question information. – xtrchessreal Jul 18 '22 at 07:47
  • here is the link: https://www.hp.com/in-en/shop/hp-pavilion-laptop-14-ec1008au-6d9t4pa.html – miks Jul 19 '22 at 15:33

4 Answers4

14

EDIT: Please remove the incorrect driver package:

sudo add-apt-repository -r ppa:kelebek333/kablosuz 
sudo apt purge rtw89-dkms 
sudo apt update
sudo apt install git bc
git clone https://github.com/HRex39/rtl8852be.git
cd rtl8852be
make

Several possibly harmless warnings will appear.

sudo make install

Reboot. You will probably need to disable secure boot.

After each kernel update, you must recompile:

cd rtl8852be
make clean
git pull
make
sudo make install
chili555
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  • sorry to say but after running the above commands and disabling the secure boot nothing changes :( – miks Jun 04 '22 at 21:10
  • May we please see: sudo dmesg | grep -i rtw – chili555 Jun 04 '22 at 21:32
  • this command "sudo dmesg | grep -i rtw" returned me nothing. – miks Jun 05 '22 at 13:22
  • Please try: sudo modprobe rtw89pci && sudo dmesg | grep -i rtw Post any errors, warnings, etc. – chili555 Jun 05 '22 at 13:34
  • The error is: [13076.955807] rtw89core: loading out-of-tree module taints kernel. [13076.955887] rtw89core: module verification failed: signature and/or required key missing - tainting kernel – miks Jun 05 '22 at 16:02
  • Those are not errors; they are informational. Which driver loaded? lsmod | grep rtw Is there no other entries at all in dmesg related to rtw?? – chili555 Jun 06 '22 at 14:29
  • rtw89pci 49152 0 rtw89core 352256 1 rtw89pci mac80211 1228800 2 rtw89pci,rtw89core cfg80211 958464 2 rtw89core,mac80211 – miks Jun 06 '22 at 16:47
  • Please run: sudo dmesg > dmesg.txt Find the text file and post it here and give me the link: http://paste.ubuntu.com – chili555 Jun 06 '22 at 19:56
  • link: https://pastebin.ubuntu.com/p/BHNWQGjkcy/plain/ – miks Jun 06 '22 at 22:06
  • I have slowly become convinced that, despite contrary evidence here at AU and elsewhere, that the current versions of rtw89pci are incorrect for your device. I will accordingly edit my question. – chili555 Jun 07 '22 at 00:11
  • these instructions worked for me on a Lenovo IdeaBook 1 – emhohensee Jun 07 '22 at 02:03
  • thanks buddy thanks a lot. But there is another problem that my bluetooth is not showing me any devices. – miks Jun 07 '22 at 06:41
  • Start a new topic for the bluetooth. – Raffles Jun 07 '22 at 08:58
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    yes I have posted a new question – miks Jun 07 '22 at 15:18
  • I'm having exact problem, but i'm stuck on command make running this command giving following error https://pastebin.ubuntu.com/p/dNPMndsZd4/ please help – Shubham Kumar Jul 25 '22 at 17:08
  • @ShubhamKumar Please start your own new question. – chili555 Jul 25 '22 at 17:33
  • Regarding disabling safe boot: I don't want to keep safe boot disabled because it interferes with dual booting into windows. I was successfully able to create a signing certificate and sign the driver using the instructions from here: https://ubuntu.com/blog/how-to-sign-things-for-secure-boot. – NemesisRidiculii Oct 13 '22 at 21:24
4

This solved my WIFI:

git clone https://github.com/HRex39/rtl8852be.git

and Bluetooth worked after:

git clone https://github.com/HRex39/rtl8852be_bt.git.

Thanks

Pilot6
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user1648892
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2
#Turn off your Security Boot in BIOS

git clone https://github.com/HRex39/rtl8852be.git
cd rtl8852be
make -j8
sudo make install
sudo modprobe 8852be
HRex39
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  • Had this same problem on an HP Pavilion Laptop 14z-ec100 running a Ryzen 5 5625U with the exact same wifi card & this worked! Can't wait until that driver finally gets into the Kernel since WiFi still doesn't work out the box on Fedora 37's 6.0 Kernel either. – Aveth Nov 23 '22 at 00:00
1

After some tinkering, I got this to work on a new Lenovo ThinkBook G2 (took longer than necessary because I didn't check the README). If your kernel version is 5.18 (check with uname -r) or above, you need to use:

git clone https://github.com/HRex39/rtl8852be.git -b dev

to get the correct version. Other steps are the same as in chili555's answer. Make sure Secure Boot is disabled if you run into problems.

Hope my addition helps someone, and thank you chili555!

BeastOfCaerbannog
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cTho
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  • Thank you!! After finally finding chili555's answer, I was devastated that make errored out. You saved me with this! – JMTyler Apr 15 '23 at 22:37