Problem with Realtek WiFi dongle (RTL8812BU)

Hello Harry @spockfish ,

I have a problem with a Realtek Wifi dongle. I have one that is working fine with Ropieee on a RPi 2B, but a new one (exactly the same model) on a different RPi 2B isn’t working. It looks like the driver is not found/loaded.

lsusb -v: 0bda:b812 Realtek Semiconductor Corp. USB3.0 802.11ac 1200M Adapter

[ 19.356267] usbcore: registered new interface driver rtl8723bu
[ 20.594961] usbcore: registered new interface driver rtl8192eu
[ 21.808825] usbcore: registered new interface driver rt2800usb
[ 23.059340] usbcore: registered new interface driver rtl88XXau
[ 24.140254] usbcore: registered new interface driver rtl8xxxu
[ 25.255318] usbcore: registered new interface driver brcmfmac
[ 26.317606] usbcore: deregistering interface driver rtl8723bu
[ 26.401813] usbcore: deregistering interface driver rtl8xxxu
[ 26.436472] usbcore: deregistering interface driver rt2800usb
[ 26.767203] usbcore: deregistering interface driver brcmfmac
[ 26.806542] usbcore: deregistering interface driver rtl88XXau
[ 26.847234] usbcore: deregistering interface driver rtl8192eu

Driver rtl88x2bu isn’t in the list but it is on the other RPi.

I’ve sent you the logs of the RPi that isn’t working, identifier: fa4a255678a6cfc1

Hope you can see what is going wrong.


Hi Joost,

Are you sure it is exactly the same model? As in: it has the same USB id?

AFAIK the device is not recognized by the driver, which in most cases is caused by an ID that isn’t supported by the driver.


I’ve checked the driver (as with other Realtek stuff it’s out-of-tree) and there’s a rather large update. I’ll pull it in and make sure this lands in the next version.

Hi Harry,

ID’s and decription of both adapters are exactly the same. I’ve put them in my main Linux system to double check with lsusb -v . The first identification strings in dmesg of the Pi’s are also exactly the same.

Thanks for updating the driver in the next version. I will wait for that and check again.