Lost WiFi with latest update {SOLVED}

[Addison]

"and then try to re-install it again. If you get an error during installation, then post the log file from the build - dkms will show you where it is."

I don't know what that means.

I need something to copy and paste because I am too stupid to live.

[mitu]

@Addison said in Lost WiFi with latest update:

DKMS: add completed.
dkms build -m 8812au -v 5.6.4.2_35491.20191025
Error! echo
Your kernel headers for kernel 5.10.103-v8+ cannot be found at
/lib/modules/5.10.103-v8+/build or /lib/modules/5.10.103-v8+/source.
make: *** [Makefile:2304: dkms_install] Error 1

OK, so it fails here and it's probably why it was not automatically installed during the kernel upgrade.

Try running

dkms install -m 8812au -v 5.6.4.2_35491.20191025 --all

from the source folder and see if it gets installed.

[Addison]

Okay.

dkms install -m 8812au -v 5.6.4.2_35491.20191025 --all

pi@retropie:~ $ dkms install -m 8812au -v 5.6.4.2_35491.20191025 --all
Error! You must be root to use this command.
pi@retropie:~ $ sudo dkms install -m 8812au -v 5.6.4.2_35491.20191025 --all
pi@retropie:~ $

Nothing seemed to have happened unless I phrased the terming wrong.

[Addison]

I can only upvote 6 posts per day here?

Well that's just hot garbage. :/

[Addison]

Ah nuts.

Just realized you requested to install that from the source folder.

Sorry.

pi@retropie:~ $ cd rtl8812au
pi@retropie:~/rtl8812au $ sudo dkms install -m 8812au -v 5.6.4.2_35491.20191025 --all
pi@retropie:~/rtl8812au $

Have I done that correctly?

[mitu]

@Addison said in Lost WiFi with latest update:

Just realized you requested to install that from the source folder.

Yes, but I think it doesn't matter. Is the wireless driver still not installed ? You can check with sudo dkms status to see if it was installed for the current kernel (5.10.103).

[Addison]

Unsure what this all means.

pi@retropie:~ $ sudo dkms status
8812au, 5.6.4.2_35491.20191025: added
xpad, 0.4, 5.10.103-v7l+, armv7l: installed (original_module exists)
xpad, 0.4, 5.10.60+, armv7l: installed (original_module exists) (WARNING! Diff between built and installed module!)
xpad, 0.4, 5.10.60-v7+, armv7l: installed (original_module exists) (WARNING! Diff between built and installed module!)
xpad, 0.4, 5.10.60-v7l+, armv7l: installed (original_module exists) (WARNING! Diff between built and installed module!)

EDIT:

Also....

pi@retropie:~ $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 054c:09cc Sony Corp. DualShock 4 [CUH-ZCT2x]
Bus 001 Device 003: ID 2357:011e TP-Link
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[mitu]

It's still not installed. I wander though if you're not actually seeing the same issue with https://retropie.org.uk/forum/topic/34200/.
Add arm_64bit=0 to your /boot/config.txt , reboot and then try again installing the driver.

[Addison]

At the end of /boot/config.txt (currently showing with your suggested update):

[all]
#dtoverlay=vc4-fkms-v3d
#overscan_scale=1
arm_64bit=0
dtoverlay=disable-wifi
dtoverlay=disable-bt

REBOOTED

pi@retropie:~ $ sudo apt install git dkms
Reading package lists... Done
Building dependency tree
Reading state information... Done
dkms is already the newest version (2.6.1-4).
git is already the newest version (1:2.20.1-2+deb10u8).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
pi@retropie:~ $ git clone https://github.com/aircrack-ng/rtl8812au.git
fatal: destination path 'rtl8812au' already exists and is not an empty directory.
pi@retropie:~ $ cd rtl8812au
pi@retropie:~/rtl8812au $ sudo make dkms_install
mkdir -p /usr/src/8812au-5.6.4.2_35491.20191025
cp -r * /usr/src/8812au-5.6.4.2_35491.20191025
dkms add -m 8812au -v 5.6.4.2_35491.20191025
Error! DKMS tree already contains: 8812au-5.6.4.2_35491.20191025
You cannot add the same module/version combo more than once.
make: *** [Makefile:2303: dkms_install] Error 3

[mitu]

Remove the module again with sudo dkms remove 8812au/5.6.4.2_35491.20191025 --all and re-run the installation, but just the last step.

[Addison]

pi@retropie:~ $ sudo dkms remove 8812au/5.6.4.2_35491.20191025 --all

---

Deleting module version: 5.6.4.2_35491.20191025
completely from the DKMS tree.

Done.

pi@retropie:~/rtl8812au $ sudo make dkms_install
mkdir -p /usr/src/8812au-5.6.4.2_35491.20191025
cp -r * /usr/src/8812au-5.6.4.2_35491.20191025
dkms add -m 8812au -v 5.6.4.2_35491.20191025

Creating symlink /var/lib/dkms/8812au/5.6.4.2_35491.20191025/source ->
/usr/src/8812au-5.6.4.2_35491.20191025

DKMS: add completed.
dkms build -m 8812au -v 5.6.4.2_35491.20191025

Kernel preparation unnecessary for this kernel. Skipping...

Building module:
cleaning build area...
'make' -j4 KVER=5.10.103-v7l+ KSRC=/lib/modules/5.10.103-v7l+/build.............................................................
cleaning build area...

DKMS: build completed.
dkms install -m 8812au -v 5.6.4.2_35491.20191025

88XXau.ko:
Running module version sanity check.

• Original module
  • No original module exists within this kernel
• Installation
  • Installing to /lib/modules/5.10.103-v7l+/updates/

depmod...

DKMS: install completed.
dkms status
8812au, 5.6.4.2_35491.20191025, 5.10.103-v7l+, armv7l: installed
xpad, 0.4, 5.10.103-v7l+, armv7l: installed (original_module exists)
xpad, 0.4, 5.10.60+, armv7l: installed (original_module exists) (WARNING! Diff between built and installed module!)
xpad, 0.4, 5.10.60-v7+, armv7l: installed (original_module exists) (WARNING! Diff between built and installed module!)
xpad, 0.4, 5.10.60-v7l+, armv7l: installed

REBOOT

Config WiFi
Current IP: 192.168.0.15
Wireless IP: 192.168.0.15

Joy!

Think it took this time. :D

Going to unplug my ethernet cable now and do this for my other Pi as well.

Thank you so much Mitu!

[Addison]

Other Pi is now back to faster wireless speeds as well.

Awesome! :D