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thebigslide
l33t
Joined: 23 Dec 2004
Posts: 792
Location: under a car or on top of a keyboard
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 Posted: Fri Jul 21, 2023 12:00 am Post subject: Intel Wireless WiFi Link Next-Gen AGN - no device |
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I beat my head against the wall figuring this out for hours, so I thought I would post in case anyone else runs into this. I don't know when it started happening or if it is maybe even deliberate for some reason I'm missing. I updated my kernel from 6.1.31 to 6.1.38 and I did the unthinkable - I made more than one change simultaneously without testing each separately.... I removed a bunch of "unused" kernel config options to try to shrink it instead of trying a make oldconfig first on its own.
LIB80211 is selected by:
| Code: |
IPW2100 [=n] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] && PCI [=y] && CFG80211 [=y]
IPW2200 [=n] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] && PCI [=y] && CFG80211 [=y]
LIBIPW [=n] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] && PCI [=y] && CFG80211 [=y]
HOSTAP [=n] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTERSIL [=n]
LIBERTAS [=n] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_MARVELL [=n] && CFG80211 [=y]
RTLLIB [=n] && STAGING [=n] && WLAN [=y] && m && MODULES [=y]
R8188EU [=n] && STAGING [=n] && WLAN [=y] && USB [=y] && CFG80211 [=y] && m && MODULES [=y] |
LIBIPW is selected by:
| Code: |
IPW2100 [=n] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] && PCI [=y] && CFG80211 [=y]
IPW2200 [=n] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_INTEL [=y] && PCI [=y] && CFG80211 [=y] |
I'm not sure if excluding CONFIG_IWLWIFI was an oversight or not but it's not obvious that the fix is to enable any other Intel driver as a module even if you don't have that card in your machine.
TL;DR: CONFIG_IWLWIFI doesn't automagically select LIB80211, which is necessary for wireless networking to function properly. The other Intel wireless drivers do select LIB80211. The effected cards are:
| Code: | ┌────────────── Intel Wireless WiFi Next Gen AGN - Wireless-N/Advanced-N/Ultimate-N (iwlwifi) ───────────────┐
│ CONFIG_IWLWIFI: │
│ │
│ Select to build the driver supporting the: │
│ │
│ Intel Wireless WiFi Link Next-Gen AGN │
│ │
│ This option enables support for use with the following hardware: │
│ Intel Wireless WiFi Link 6250AGN Adapter │
│ Intel 6000 Series Wi-Fi Adapters (6200AGN and 6300AGN) │
│ Intel WiFi Link 1000BGN │
│ Intel Wireless WiFi 5150AGN │
│ Intel Wireless WiFi 5100AGN, 5300AGN, and 5350AGN │
│ Intel 6005 Series Wi-Fi Adapters │
│ Intel 6030 Series Wi-Fi Adapters │
│ Intel Wireless WiFi Link 6150BGN 2 Adapter │
│ Intel 100 Series Wi-Fi Adapters (100BGN and 130BGN) │
│ Intel 2000 Series Wi-Fi Adapters │
│ Intel 7260 Wi-Fi Adapter │
│ Intel 3160 Wi-Fi Adapter │
│ Intel 7265 Wi-Fi Adapter │
│ Intel 8260 Wi-Fi Adapter │
│ Intel 3165 Wi-Fi Adapter |
If your Intel Card of the same persuasion produces dmesg output like this:
| Code: | [ 36.413131] Intel(R) Wireless WiFi driver for Linux
[ 36.413573] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[ 36.423371] Loading firmware: iwlwifi-8265-36.ucode
[ 36.431650] iwlwifi 0000:02:00.0: loaded firmware version 36.ca7b901d.0 8265-36.ucode op_mode iwlmvm
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but you can't see any wlp/wlan device, rfkill doesn't have one either, and you don't have dmesg output like this:
| Code: | [ 36.916171] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 8265, REV=0x230
[ 37.023277] iwlwifi 0000:02:00.0: base HW address: a8:6d:aa:cb:92:3d, OTP minor version: 0x4
[ 37.102497] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' |
do a | Code: | | grep LIB80211 .config |
and make sure it's not unset.[/code] |
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grknight
Retired Dev
Joined: 20 Feb 2015
Posts: 2130
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| Posted: Fri Jul 21, 2023 2:23 am Post subject: Re: Intel Wireless WiFi Link Next-Gen AGN - no device |
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| thebigslide wrote: | | ITL;DR: CONFIG_IWLWIFI doesn't automagically select LIB80211, which is necessary for wireless networking to function properly. The other Intel wireless drivers do select LIB80211. ] |
LIB80211 is necessary for really ancient cards, Modern ones do not need it.
Your issue is related to something else, but the detail are too limited to determine what.
Please put the entire dmesg and kernel config on a paste site for more debugging. |
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