Arch Linux

shrub

Member

Registered: 2025-12-12

Posts: 2

Wifi Hardware no longer working

My wifi module recently stopped working properly on my Arch desktop PC. I've been using ethernet, but I soon need to go back to wifi, so I hope to get this fixed.
When I run nmcli general, I get:

 
STATE      CONNECTIVITY  WIFI-HW  WIFI     WWAN-HW  WWAN     METERED      
connected  full          missing  enabled  missing  enabled  no (guessed) 

which makes it seem like my wifi module is not being detected at all. However, if i run lspci -v, part of the output gives:

0b:00.0 Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
	Subsystem: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
	Flags: fast devsel, IRQ 41, IOMMU group 22
	Memory at f6200000 (64-bit, prefetchable) [size=1M]
	Memory at f6300000 (64-bit, non-prefetchable) [size=32K]
	Capabilities: <access denied>
	Kernel modules: mt7921e

which makes it seem as though it is detecting my wifi module. All the other hardware in the output (ethernet controller, usb controller, etc.) give similar output but have "Kernel driver in use: ..."  in the output as well, unlike what is given for the network controller.
If anyone could help me figure out what the issue is or how to fix it, that would be greatly appreciated.

loqs

Member

Registered: 2014-03-06

Posts: 18,796

Re: Wifi Hardware no longer working

Please post the full output of `dmesg` and `modeprobe mt7921e`.

shrub

Member

Registered: 2025-12-12

Posts: 2

Re: Wifi Hardware no longer working

Strangely enough, now that I only have access to wifi, everything works as expected. I didn't even need to run any commands. I appreciate the support regardless.

seth

Member

From: Don't DM me only for attention

Registered: 2012-09-03

Posts: 73,317

Re: Wifi Hardware no longer working

You can access the journal of the previous boots, "sudo journalct -b -δ" for δ boots ago.

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