Network Interface for wifi adapter doesn't show up.

nontriviality · 2021-05-09 23:01:49

Hey, I recently updated to 5.12.1 and my wifi adapter stopped working. The model is TL-WN722N.
I can verify that the adapter itself works, and I have installed the driver from https://aur.archlinux.org/packages/8188eu-dkms/

`'lsusb -v` shows that the adapter is there but both `ip link` and `iwctl adapter list` do not show the adapter.
What can I do?

Last edited by nontriviality (2021-05-09 23:02:09)

Scimmia · 2021-05-09 23:23:31

Did the driver rebuild correctly when you updated the kernel?

nontriviality · 2021-05-09 23:31:01

I think so, how can I check that?

nontriviality · 2021-05-09 23:33:24

I just reinstalled the drivers. I get this error midway through:

`Your kernel headers for kernel 5.10.35-1-lts cannot be found at
/usr/lib/modules/5.10.35-1-lts/build or /usr/lib/modules/5.10.35-1-lts/source.
You can use the --kernelsourcedir option to tell DKMS where it's located.
error: command failed to execute correctly`

But it seems like it still installs fine. No errors are thrown later on.

The full installation:

----
:: Proceed with installation? [Y/n]
(1/1) checking keys in keyring [----------------------------] 100%
(1/1) checking package integrity [----------------------------] 100%
(1/1) loading package files [----------------------------] 100%
(1/1) checking for file conflicts [----------------------------] 100%
(1/1) checking available disk space [----------------------------] 100%
:: Running pre-transaction hooks...
(1/1) Remove upgraded DKMS modules
==> dkms remove --no-depmod -m 8188eu -v v4.3.0.8_13968 -k 5.12.1-arch1-1
:: Processing package changes...
Error! The module/version combo: 8188eu-v4.3.0.8_13968
is not located in the DKMS tree.
error: command failed to execute correctly
(1/1) reinstalling 8188eu-dkms [----------------------------] 100%

Creating symlink /var/lib/dkms/8188eu/v4.3.0.8_13968/source ->
/usr/src/8188eu-v4.3.0.8_13968

DKMS: add completed.
Error! echo
Your kernel headers for kernel 5.10.35-1-lts cannot be found at
/usr/lib/modules/5.10.35-1-lts/build or /usr/lib/modules/5.10.35-1-lts/source.
You can use the --kernelsourcedir option to tell DKMS where it's located.
error: command failed to execute correctly
:: Running post-transaction hooks...
(1/2) Arming ConditionNeedsUpdate...
(2/2) Install DKMS modules
==> dkms install --no-depmod -m 8188eu -v v4.3.0.8_13968 -k 5.12.1-arch1-1
==> depmod 5.12.1-arch1-1
-----------

Last edited by nontriviality (2021-05-09 23:34:59)

Scimmia · 2021-05-10 00:45:36

As it says, you don't have the headers for your current kernel.

And please use code tags.

seth · 2021-05-10 06:02:47

https://archlinux.org/packages/core/x86 … s-headers/

uname -a
lsmod
lsusb

And please post your system journal.

Arch Linux

#1 2021-05-09 23:01:49

Network Interface for wifi adapter doesn't show up.

#2 2021-05-09 23:23:31

Re: Network Interface for wifi adapter doesn't show up.

#3 2021-05-09 23:31:01

Re: Network Interface for wifi adapter doesn't show up.

#4 2021-05-09 23:33:24

Re: Network Interface for wifi adapter doesn't show up.

#5 2021-05-10 00:45:36

Re: Network Interface for wifi adapter doesn't show up.

#6 2021-05-10 06:02:47

Re: Network Interface for wifi adapter doesn't show up.

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