wpa_supplicant: can't get wifi up and running on RPI4 - Githubissues

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wpa_supplicant: can't get wifi up and running on RPI4 #361239

Closed brianmay closed 1 week ago

brianmay commented 1 week ago

Describe the bug

Immediately after upgrading from nixos24.05 to nixos24.11, wifi networking stopped. Before rebooting in fact. Rebooting to new kernel doesn't help.

Logs give a lot of message along the lines of "brcmfmac: brcmf_set_channel: set chanspec: 0xXXXX fail, reason -52"

This leads me to google search results like https://github.com/raspberrypi/linux/issues/6049 which blame wpa_supplicant 2.11 and say I should downgrade to wpa_supplicant 2.10.

Unfortunately I can't see any easy way of overriding the wpa_supplicant to 2.10 without downgrading back to nixos-24.05.

Steps To Reproduce

Steps to reproduce the behavior:

Have working wifi on nixos 24.05
Upgrade to nixos 24.11

Expected behavior

Networking should continue to work

Metadata

system: "aarch64-linux"
host os: Linux 6.6.31, NixOS, 24.11 (Vicuna), 24.11.20241128.c71ad5c
multi-user?: no
sandbox: yes
version: nix-env (Nix) 2.24.10
nixpkgs: not found

(nixpkgs not found because there was no networking)

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brianmay commented 1 week ago

Never mind, I was on completely the wrong track entirely.

This changed fixed it.

-    networks = { PENGUINS.psk = "ext:PSK_PENGUINS"; };
+    networks = {PENGUINS.pskRaw = "ext:PSK_PENGUINS";};

The docs led me to believe that pskRaw is for hex format passwords only. But plan-text passwords also work fine.