Misbehaves on Arch

[glibg10b]

After I try to turn on monitor mode with airmon-ng start <interface>:

When I run sudo (even just sudo --help), the terminal freezes. Neither Ctrl+C nor Ctrl+Z does anything. It also happens to network-related programs like iw and NetworkManager. At about 120 seconds after running sudo airmon-ng start <interface>, I start seeing errors in the journal about some of KDE Plasma's components being unresponsive. modprobe -r and rmmod freeze as well when trying to unload this module.

The same also happens with the other 8192eu modules I've tried, but not with 8xxxu. The latter unfortunately doesn't support packet injection.

Another driver I've tried (https://github.com/drygdryg/RTL8192EU) exhibits the same symptoms in Arch but works perfectly fine in Kali.

Linux version is 5.14.7-arch1-1. Adapter is a TL-W823N v3.

[glibg10b]

I switched to 5.10.68-1-lts and now the previous problem doesn't happen anymore, but I now get:

Error setting channel: command failed: Device or resource busy (-16)
Error -16 likely means your card was set back to station mode by something.
Removing non-monitor wls160u4u1 interface...

You already have a wls160u4u1 device but it is NOT in station mode.
Whatever you did, don't do it again.
Please run "iw wls160u4u1 del" before attempting to continue

even when neither NetworkManager nor wpa_supplicant is running.

[ranjith19]

Is this solved for you?

[glibg10b]

@ranjith19 Nope, I gave up. I'm switching to Kali until I get a Raspberry Pi (which supports monitor mode and packet injection).

[oddsito]

glibg10b you're not alone, i've seen your questions on the arch websites asking for help and so on, i face the same issue, its because the wifi driver isn't perfectly built for Arch. We need to buy another adapter in the mean time for Arch Linux... or Use Kali yeah.