*** This bug is a duplicate of bug 1865962 ***
https://bugs.launchpad.net/bugs/1865962
Got a new zenbook UX431F and no wifi despite having a usually well supported
intel wifi.
The PCI id is 8086 02f0. No clear if this is a AC9462, AC9560, 22000. The
relation between the commercial name and the actual hardware remains mysterious
to me.
I eventually found a workaround. The important bit for you may be that
it seems that the driver shipped with the standard bionic kernel
5.3.0-46 loads the wrong firmware blob. It loads "iwlwifi-
Qu-b0-jf-b0-48.ucode" which crashes quickly, as seen in dmesg. Here is
why I believe it should load "iwlwifi-QuZ-a0-jf-b0-48.ucode":
* The backport-iwlwifi-dkms, version 7906 from
https://packages.ubuntu.com/search?keywords=backport-iwlwifi-dkms seems
in fact older than the driver found in kernel 5.3.0-46. I have to dkms
install --force to use it. It loads firmare "/lib/firmware/iwlwifi-
QuZ-a0-jf-b0-48.ucode" and does not crash. I can see the available ssids
in network manager. But dmesg shows an error setting up "wep" and it
seems unable to stay connected to my secure network.
* Then I tried version 8324 from https://launchpad.net/~canonical-hwe-
team/+archive/ubuntu/backport-iwlwifi. This one also loads
"/lib/firmware/iwlwifi-QuZ-a0-jf-b0-48.ucode" and all works fine! Too
bad it took me several hours to find it.
Anyway, none of the drivers that load "/lib/firmware/iwlwifi-
QuZ-a0-jf-b0-48.ucode" show a firmware crash in the intel chip. The
shipped driver loads "iwlwifi-Qu-b0-jf-b0-48.ucode" and crashes,
resulting in no wifi card being registered.
In case this helps.
- Leon
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https://bugs.launchpad.net/bugs/1864188
Title:
Intel Wireless-AC 9462 [8086:02f0] Subsystem [8086:42a4]: After the
upgrade of 19.10 on 2020-02-18, wifi does not exist
Status in linux package in Ubuntu:
Confirmed
Bug description:
lsmod shows the the modules are on, but no wifi hardware seems available.
That happened just after the kernel update I did on 18th of Feb. 2020, on
Ubuntu 19.10. No other change.
System is Dell Vostro 5490/i7 .
mgrivas@Vostro:~$ lsmod | grep iwl
iwlmvm 401408 0
mac80211 851968 1 iwlmvm
iwlwifi 348160 1 iwlmvm
cfg80211 712704 3 iwlmvm,iwlwifi,mac80211
mgrivas@Vostro:~$ iwconfig
<all devices> no wireless extensions.
- The wlan device does not appear.
mgrivas@Vostro:~$ lspci | grep -i net
00:14.3 Network controller: Intel Corporation Device 02f0
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
mgrivas@Vostro:~$ cat /proc//version_signature
Ubuntu 5.3.0-40.32-generic 5.3.18
mgrivas@Vostro:~$ lspci -vnvns 00:14.3
00:14.3 Network controller [0280]: Intel Corporation Device [8086:02f0]
Subsystem: Intel Corporation Device [8086:42a4]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at c2318000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-40-generic 5.3.0-40.32
ProcVersionSignature: Ubuntu 5.3.0-40.32-generic 5.3.18
Uname: Linux 5.3.0-40-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu8.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: mgrivas 3042 F.... pulseaudio
/dev/snd/controlC0: mgrivas 3042 F.... pulseaudio
/dev/snd/controlC2: mgrivas 3042 F.... pulseaudio
Date: Fri Feb 21 11:36:58 2020
InstallationDate: Installed on 2019-12-23 (60 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: Dell Inc. Vostro 5490
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-40-generic
root=UUID=5107e080-d818-4651-b256-cbd6c7047a2f ro
RelatedPackageVersions:
linux-restricted-modules-5.3.0-40-generic N/A
linux-backports-modules-5.3.0-40-generic N/A
linux-firmware 1.183.4
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: ashmem_linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/25/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.4.0
dmi.board.name: 0YR1P7
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.4.0:bd11/25/2019:svnDellInc.:pnVostro5490:pvr:rvnDellInc.:rn0YR1P7:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Vostro
dmi.product.name: Vostro 5490
dmi.product.sku: 0959
dmi.sys.vendor: Dell Inc.
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