WiFi Adapter RTL8812AU driver installation fails with the latest kernel: 5.15.0-27-generic (x86_64)

[donvito7]

All what I do is:
apt update
apt install git dkms
git clone https://github.com/gnab/rtl8812au.git
cp -r rtl8812au /usr/src/rtl8812au-4.2.2
dkms add -m rtl8812au -v 4.2.2
dkms build -m rtl8812au -v 4.2.2

but it fails on:

dkms build -m rtl8812au -v 4.2.2

Kernel preparation unnecessary for this kernel. Skipping...
Building module:
cleaning build area...
'make' all KVER=5.15.0-27-generic........(bad exit status: 2)
ERROR (dkms apport): binary package for rtl8812au: 4.2.2 not found
Error! Bad return status for module build on kernel: 5.15.0-27-generic (x86_64)
Consult /var/lib/dkms/rtl8812au/4.2.2/build/make.log for more information.

--------------------

DKMS make.log for rtl8812au-4.2.2 for kernel 5.15.0-27-generic (x86_64)
Sun 8 May 21:30:30 BST 2022
make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/5.15.0-27-generic/build M=/var/lib/dkms/rtl8812au/4.2.2/build modules
make[1]: Entering directory '/usr/src/linux-headers-5.15.0-27-generic'
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_cmd.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_security.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_debug.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_io.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_ioctl_query.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_ioctl_set.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_ieee80211.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_mlme.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_mlme_ext.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_wlan_util.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_vht.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_pwrctrl.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_rf.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_recv.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_sta_mgt.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_ap.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_xmit.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_p2p.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_tdls.o
CC [M] /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_br_ext.o
/var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_br_ext.c:25:10: fatal error: net/ipx.h: No such file or directory
25 | #include <net/ipx.h>
| ^~~~~~~~~~~
compilation terminated.
make[2]: *** [scripts/Makefile.build:285: /var/lib/dkms/rtl8812au/4.2.2/build/core/rtw_br_ext.o] Error 1
make[1]: *** [Makefile:1875: /var/lib/dkms/rtl8812au/4.2.2/build] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-5.15.0-27-generic'
make: *** [Makefile:1086: modules] Error 2
------------------------------------------------------------------------------------

Chipset is actually RTL8811AU but worked perfectly with older kernels.

Any help much appreciated.

 

[Brickwizard]

Welcome to the forums
Which distribution are you using

 

[donvito7]

Description: Ubuntu 22.04 LTS
Release: 22.04
Codename: jammy

 

[f33dm3bits]

Why are trying to manually compile the driver if there is a package in the default repos?

rtl8812au-dkms/jammy,jammy 4.3.8.12175.20140902+dfsg-0ubuntu15 all
  dkms source for the r8812au network driver

 

[donvito7]

hmmm thank you. I have not seen this. I tried it the install was successful with no errors but the interface for the USB dongle is not coming up. Could you suggest how to diagnose it?

 

[Deleted member 140690]

Do you mean you have no icon in the system tray for WiFi,
this happened to me, and he following line in a terminal will
bring the icon back and keep it there when the terminal is closed.

nohup nm-applet &

 

[donvito7]

no not really. In settings I have only build in wifi listed. Normally if the secondary adapter is installed you have a choice of both.

I can see that device is detected lsusb:
Bus 001 Device 012: ID 0bda:0811 Realtek Semiconductor Corp. Realtek 8812AU/8821AU 802.11ac WLAN Adapter [USB Wireless Dual-Band Adapter 2.4/5Ghz]

but the driver does not seem to work. Just wonder if I can find any debug information

lsmod | grep -i wifi
iwlwifi 446464 1 iwlmvm
cfg80211 958464 4 iwlmvm,8812au,iwlwifi,mac80211

 

[Brickwizard]

I tried it the install was successful with no errors but the interface for the USB dongle is not coming up. Could you suggest how to diagnose it?

Is this a Laptop? is the wireless switched on [using the dedicated switch or key combination]
If its a desktop, have you tried a different USB port ?

 

[kc1di]

What is the out put of

rfkill list

Also make sure secure boot is turned off. Realteak won't usually work with secure boot turned on.

 

[CrazedNerd]

Manual installations tend not to work when there are more than a couple of steps, at least in my experience. I successfully did a command line install of anki flashcard software on Ubuntu, that was only 3 steps, and isn't technically a manual install since it ends with ./install.sh

If you find a wifi adapter with an ralink chipset, then you won't have to install drivers most likely. I recently had an issue with one of my desktops: ubuntu studio did not detect the wifi interface, so I plugged in a tp link wifi adapter from years ago when I had this same problem when using linux.