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#1 2022-09-29 14:52:52

Cator Canulis
Member
Registered: 2018-03-23
Posts: 13

WiFi interface won't show up

Hello everyone,

I installed Arch a couple of days ago using the install script as a headless server. Everything except the wifi interface works. the driver seems to be loaded but there just is no interface.

System basics:

> uname -a
Linux doctor6 5.19.11-arch1-1 #1 SMP PREEMPT_DYNAMIC Sat, 24 Sep 2022 18:24:15 +0000 x86_64 GNU/Linux

Why do I believe the driver is loaded?

> lspci -k
...
02:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
        Subsystem: Intel Corporation Dual Band Wireless-AC 8265
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi

> dmesg | grep iwlwifi
[    1.823846] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[    1.860818] iwlwifi 0000:02:00.0: loaded firmware version 36.ca7b901d.0 8265-36.ucode op_mode iwlmvm

There is no interface however to turn on or use in any way.

> ip link show

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp0s31f6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether 6c:4b:90:3f:c3:44 brd ff:ff:ff:ff:ff:ff

Why the driver might sill not be loaded or at least not working properly:

> rfkill list all

0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

Shouldn't the wifi card show up here (blocked or not)?

What I tried so far:

  • Rebooting

  • Reinstalling the "linux-firmware" package

  • Googling for similar problems. There the driver was always missing.

Additional info:
Before I switched to Arch I used debian on the same machine. I can remember that wifi din't work there out of the box either. I had to install a package, but - the documentation ace that I am - I didn't took a not on which one it was.

Further:

> mkinitcpio -P

...
==> Starting build: 5.19.11-arch1-1
  -> Running build hook: [base]
  -> Running build hook: [udev]
  -> Running build hook: [keyboard]
==> WARNING: Possibly missing firmware for module: xhci_pci
  -> Running build hook: [keymap]
  -> Running build hook: [modconf]
  -> Running build hook: [block]
==> WARNING: Possibly missing firmware for module: aic94xx
==> WARNING: Possibly missing firmware for module: bfa
==> WARNING: Possibly missing firmware for module: qed
==> WARNING: Possibly missing firmware for module: qla1280
==> WARNING: Possibly missing firmware for module: qla2xxx
==> WARNING: Possibly missing firmware for module: wd719x
  -> Running build hook: [netconf]
==> WARNING: Possibly missing firmware for module: softing_cs
==> WARNING: Possibly missing firmware for module: bnx2x
==> WARNING: Possibly missing firmware for module: bna
==> WARNING: Possibly missing firmware for module: liquidio
==> WARNING: Possibly missing firmware for module: mlxsw_spectrum
==> WARNING: Possibly missing firmware for module: nfp
==> WARNING: Possibly missing firmware for module: cfg80211
==> WARNING: Possibly missing firmware for module: wcn36xx
==> WARNING: Possibly missing firmware for module: at76c50x_usb
==> WARNING: Possibly missing firmware for module: atmel
==> WARNING: Possibly missing firmware for module: b43
==> WARNING: Possibly missing firmware for module: b43legacy
==> WARNING: Possibly missing firmware for module: ipw2100
==> WARNING: Possibly missing firmware for module: ipw2200
==> WARNING: Possibly missing firmware for module: orinoco_usb
==> WARNING: Possibly missing firmware for module: p54pci
==> WARNING: Possibly missing firmware for module: p54spi
==> WARNING: Possibly missing firmware for module: p54usb
==> WARNING: Possibly missing firmware for module: libertas_cs
==> WARNING: Possibly missing firmware for module: libertas_sdio
==> WARNING: Possibly missing firmware for module: libertas_spi
==> WARNING: Possibly missing firmware for module: usb8xxx
==> WARNING: Possibly missing firmware for module: mwifiex_sdio
==> WARNING: Possibly missing firmware for module: mwifiex_usb
==> WARNING: Possibly missing firmware for module: mwl8k
==> WARNING: Possibly missing firmware for module: mt7603e
==> WARNING: Possibly missing firmware for module: plfxlc
==> WARNING: Possibly missing firmware for module: rtl8723ae
==> WARNING: Possibly missing firmware for module: rsi_sdio
==> WARNING: Possibly missing firmware for module: rsi_usb
==> WARNING: Possibly missing firmware for module: zd1201
==> WARNING: Possibly missing firmware for module: zd1211rw
  -> Running build hook: [dropbear]
Key is a ssh-rsa key
Wrote key to '/etc/dropbear/dropbear_rsa_host_key'
Error: Error parsing OpenSSH key
Error reading key from '/etc/ssh/ssh_host_dsa_key'
Key is a ecdsa-sha2-nistp256 key
Wrote key to '/etc/dropbear/dropbear_ecdsa_host_key'
dropbear_rsa_host_key : [REDACTED]
dropbear_ecdsa_host_key : [REDACTED]
  -> Running build hook: [encryptssh]
==> WARNING: Possibly missing firmware for module: qat_4xxx
  -> Running build hook: [filesystems]
  -> Running build hook: [fsck]

Any help is greatly appreciated.

Cheers
Markus

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#2 2022-09-29 15:40:07

seth
Member
Registered: 2012-09-03
Posts: 51,306

Re: WiFi interface won't show up

Please post a complete system journal (sudo journalctl -b | curl -F 'file=@-' 0x0.st) and if you're using iwd, see https://wiki.archlinux.org/title/Iwd#Re … after_boot

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#3 2022-09-29 15:40:13

Trilby
Inspector Parrot
Registered: 2011-11-29
Posts: 29,534
Website

Re: WiFi interface won't show up

By any chance, do you dual boot with windows? (And use "fastboot")

"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" -  Richard Stallman

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#4 2022-09-29 16:49:37

Cator Canulis
Member
Registered: 2018-03-23
Posts: 13

Re: WiFi interface won't show up

@seth: The output was surprisingly sparse:

> sudo journalctl -b | curl -F 'file=@-' 0x0.st
[sudo] Passwort für grindel: 
http://0x0.st/o4jM.txt

[EDIT:] iwd is not in use.

@Trillby: No, not on this machine. On my laptop I do and there the wifi card is the same model. However I'm using Manjaro there and not arch.

Last edited by Cator Canulis (2022-09-29 16:52:36)

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#5 2022-09-29 17:26:10

Cator Canulis
Member
Registered: 2018-03-23
Posts: 13

Re: WiFi interface won't show up

Some more info. I checked wether WIFI was disabled in Bios - which it wasn't. Also I did never actually configure a network myself but had the installation script copy the live session settings - which were ethernet only.

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#6 2022-09-29 17:44:07

loqs
Member
Registered: 2014-03-06
Posts: 17,378

Re: WiFi interface won't show up

The "Detected Intel(R) Wi-Fi ..." message is missing so https://github.com/torvalds/linux/blob/ … ps.c#L1288 is never reached

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#7 2022-09-29 19:46:47

seth
Member
Registered: 2012-09-03
Posts: 51,306

Re: WiFi interface won't show up

Very simple test: try the LTS kernel
If that doesn't work either, get rid of the "ip=:::::eth0:dhcp" parameter, I'm not sure whether that will trigger some exclusive handling that denies all other NICs.

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#8 2022-09-30 13:57:24

Cator Canulis
Member
Registered: 2018-03-23
Posts: 13

Re: WiFi interface won't show up

@seth: I will try this as soon as possible. I actually do have an ip-parameter in my systemd-loader configuration. The network should be established so I can enter my encryption password via ssh. How did you figure that out?

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#9 2022-09-30 14:01:08

seth
Member
Registered: 2012-09-03
Posts: 51,306

Re: WiFi interface won't show up

http://0x0.st/o4jM.txt has your system journal, the journal has the kernel commandline, profit smile

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

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