Driver for Realtek wifi adapter

kartable

Hi,

I've purchased a USB adapter for wifi 6e which I can find on a lsusb under
Realtek Semiconductor Corp. 802.11ax WLAN Adapter

I am not sure about the driver, anyway the only driver I've found to install is the rtl8852bu and this does not work.

Any help please.

pomon

Show the full line from lsusb for that device. And inxi -N

kartable

lsusb
Bus 003 Device 024: ID 0bda:c832 Realtek Semiconductor Corp. 802.11ax WLAN Adapter

inxi -N
Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
driver: r8169
Device-2: Realtek 802.11ax WLAN Adapter driver: N/A type: USB

Original-Syn

I believe that is the rtl8852cu chipset which can be a bit troublesome as it does not have in-kernel driver support.

This would likely be the best best...
https://github.com/ajax936/rtl8852cu

pomon

Remove conflicting driver:

sudo modprobe -r rtl8852bu
sudo eopkg rm rtl8852bu

Install build tools if you haven't done so before: sudo eopkg install -c system.devel linux-current-headers

Download and compile driver:

git clone https://github.com/morrownr/rtl8852cu-20240510.git
cd rtl8852cu-20240510
make clean && make

Install driver: sudo make install. Reboot.

Verify installation: lsmod | grep 8852cu
Check if the driver for Realtek 802.11ax WLAN is 8852cu, not N/A. inxi -N

kartable

Well thanks but it did not make it. Installation seemed to be fine, except it remained stuck in edit mode and I had to quit with Ctrl X and then reboot has occurred automatically. On startup, I had a screen with
[ 121.357819] dracut-initqueue[394]: Timed out for waiting the udev queue being empty.

lsmod | grep 8852cu does not return anything.

And inxi -N
Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
driver: r8169
Device-2: Realtek RTL8188GU 802.11n WLAN Adapter (Driver CDROM Mode)
driver: N/A type: USB

In lsusb, I now have this line:
Bus 003 Device 002: ID 0bda:1a2b Realtek Semiconductor Corp. RTL8188GU 802.11n WLAN Adapter (Driver CDROM Mode)

The driver should be rtl8188GU then? But 802.11n is no good, it should be 802.11ax.

kartable

Strange enough, it works now after a second reboot. And I have:

Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
driver: r8169
Device-2: Realtek 802.11ax WLAN Adapter driver: rtl8852cu type: USB

Well thanks, that's great.

Axios

kartable Ya multi reboots happen sometimes but not very often
glad you got it working.

Original-Syn

Happy to hear you got it going

pomon

I forgot to mention that this driver, during sudo make install, opens the /etc/modprobe.d/8852cu.conf file in nanoat the end for editing. You can edit it or simply close it as you did with Ctrl+x.
Then it asks whether you want to reboot:

Do you want to apply the new options by rebooting now? (recommended) [Y/n]

I'm writing this so others won't be surprised. Well, the important thing is that it works.