[Bug 2141726] Re: MT7920 (14c3:7920) Wi-Fi device present but no driver bound / no wlp* interface on 6.8.0-100

** Tags added: kernel-daily-bug

--
You received this bug notification because you are subscribed to linux
in Ubuntu.
Matching subscriptions: Bgg, Bmail, Nb
https://bugs.launchpad.net/bugs/2141726

Title:
MT7920 (14c3:7920) Wi-Fi device present but no driver bound / no wlp*
interface on 6.8.0-100

Status in linux package in Ubuntu:
New

Bug description:
Hardware: Lenovo IdeaPad Slim 3
OS: Ubuntu 24.04 (noble)
Kernel: 6.8.0-100-generic

Wi-Fi PCI device:
MEDIATEK 14c3:7920 (Lenovo subsystem 17aa:e020)

Problem (on 6.8.0-100):
The device appears in lspci, but there is no "Kernel driver in use" for 01:00.0
and no Wi-Fi interface appears (no wlp* in ip link / nmcli).

Evidence:
lspci -nnk (01:00.0):
01:00.0 Network controller [0280]: MEDIATEK Corp. Device [14c3:7920]
Subsystem: Lenovo Device [17aa:e020]
(no Kernel driver in use shown for 01:00.0)

modalias:
pci:v000014C3d00007920sv000017AAsd0000E020bc02sc80i00

mt7921e aliases (no 7920 entry):
pci:v000014C3d00000616sv*sd*bc*sc*i*
pci:v000014C3d00000608sv*sd*bc*sc*i*
pci:v000014C3d00007922sv*sd*bc*sc*i*
pci:v000014C3d00007961sv*sd*bc*sc*i*

Expected:
Driver should bind to 14c3:7920 and create a wlp* interface.

Workarounds:
Ethernet/USB tethering works. Wi-Fi availability varies depending on kernel boot.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.8.0-100-generic 6.8.0-100.100
ProcVersionSignature: Ubuntu 6.8.0-100.100-generic 6.8.12
Uname: Linux 6.8.0-100-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: kikoone 3427 F.... wireplumber
/dev/snd/controlC0: kikoone 3427 F.... wireplumber
/dev/snd/seq: kikoone 3422 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Feb 12 21:53:08 2026
InstallationDate: Installed on 2026-01-17 (26 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64 (20250805.1)
IwConfig:
lo no wireless extensions.

enx000ec6793106 no wireless extensions.
MachineType: LENOVO 83KA
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-100-generic root=UUID=4abf7f37-781f-46e4-96c5-19c535d4b042 ro quiet splash amdgpu.runpm=0 vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.8.0-100-generic N/A
linux-backports-modules-6.8.0-100-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.23
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/20/2025
dmi.bios.release: 1.26
dmi.bios.vendor: LENOVO
dmi.bios.version: QACN26WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76463WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad Slim 3 15AHP10
dmi.ec.firmware.release: 1.23
dmi.modalias: dmi:bvnLENOVO:bvrQACN26WW:bd10/20/2025:br1.26:efr1.23:svnLENOVO:pn83KA:pvrIdeaPadSlim315AHP10:rvnLENOVO:rnLNVNB161216:rvrSDK0T76463WIN:cvnLENOVO:ct10:cvrIdeaPadSlim315AHP10:skuLENOVO_MT_83KA_BU_idea_FM_IdeaPadSlim315AHP10:
dmi.product.family: IdeaPad Slim 3 15AHP10
dmi.product.name: 83KA
dmi.product.sku: LENOVO_MT_83KA_BU_idea_FM_IdeaPad Slim 3 15AHP10
dmi.product.version: IdeaPad Slim 3 15AHP10
dmi.sys.vendor: LENOVO

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2141726/+subscriptions