kernel 6.13.x usb wifi problems

[Robert McBroom]

Have two usb wifi adapters using Realtek chips that were noted to be 
supported in the recent kernels. One is now seen but the other is not. 
Both show in the list from

lsusb

Bus 001 Device 002: ID 0bda:8812 Realtek Semiconductor Corp. RTL8812AU 
802.11a/b/g/n/ac 2T2R DB WLAN Adapter

Bus 001 Device 005: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu 
[AC1200 Techkey]

The RTL88x2bu adapter connects. TheRTL8812AU is not on the network list. 
It connected with the kernel 6.12.x series using a driver src from .git 
and dkms.

What does it mean that the RTL8812AU device is seen but not enabled?

[Marco Moock]

Am 21.03.2025 um 12:21:37 Uhr schrieb Robert McBroom via users:
> What does it mean that the RTL8812AU device is seen but not enabled?

Check if the kernel module is being loaded.

lsusb -t

[George N. White III]

On Fri, Mar 21, 2025 at 1:22 PM Robert McBroom via users
 wrote:
> Have two usb wifi adapters using Realtek chips that were noted to be supported in the recent kernels. One is now seen but the other is not. Both show in the list from
>
> lsusb
>
> Bus 001 Device 002: ID 0bda:8812 Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter
>
> Bus 001 Device 005: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]
>
> The RTL88x2bu adapter connects. The RTL8812AU is not on the network list. It connected with the kernel 6.12.x series using a driver src from .git and dkms.
>
> What does it mean that the RTL8812AU device is seen but not enabled?

Could be some conflict with two different chips and the same 0bda:8812
ID's.  Looks like there is a module for the 8812AU but not for 8812BU.
What module does it use?

% grep -E '8812|88.2BU' /lib/modules/6.13.6-200.fc41.x86_64/config
CONFIG_RTW88_8812A=m
CONFIG_RTW88_8822BU=m
CONFIG_RTW88_8812AU=m

[Robert McBroom]

On 3/22/25 7:31 AM, George N. White III wrote:
> On Fri, Mar 21, 2025 at 1:22 PM Robert McBroom via users
>  wrote:
> > Have two usb wifi adapters using Realtek chips that were noted to be supported in the recent kernels. One is now seen but the other is not. Both show in the list from
> >
> > lsusb
> >
> > Bus 001 Device 002: ID 0bda:8812 Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter
> >
> > Bus 001 Device 005: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]
> >
> > The RTL88x2bu adapter connects. The RTL8812AU is not on the network list. It connected with the kernel 6.12.x series using a driver src from .git and dkms.
> >
> > What does it mean that the RTL8812AU device is seen but not enabled?
>
> Could be some conflict with two different chips and the same 0bda:8812
> ID's.  Looks like there is a module for the 8812AU but not for 8812BU.
> What module does it use?
>
> % grep -E '8812|88.2BU' /lib/modules/6.13.6-200.fc41.x86_64/config
> CONFIG_RTW88_8812A=m
> CONFIG_RTW88_8822BU=m
> CONFIG_RTW88_8812AU=m

Old eyes get one, b and 8 look the same but are different. Found a fix from

git clone https://github.com/lwfinger/rtw88.git rtw88-0.6

to override the kernel modules with dkms