Wireless-AC 3168NGW no longer initializes

[Zayed Amer Al-Saidi]

Booting into that kernel results in failure to load the wifi card firmware.

it is known issue see:
https://bugzilla.kernel.org/show_bug.cgi?id=206329
https://lkml.org/lkml/2020/2/8/5

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-14-generic 5.4.0-14.17
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu16
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Feb 19 19:05:55 2020
InstallationDate: Installed on 2020-02-10 (9 days ago)
InstallationMedia: Ubuntu-Server 20.04 LTS "Focal Fossa" - Alpha amd64 (20200124)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-signed-5.4
UpgradeStatus: No upgrade log present (probably fresh install)

[Zayed Amer Al-Saidi (zayed-alsaidi)]

Linux zayed-ryz 5.4.0-14-generic #17-Ubuntu SMP Thu Feb 6 22:47:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
[ 8.421999] Loading modules backported from iwlwifi
[ 8.421999] iwlwifi-stack-public:master:8324:9176b151
[ 8.504889] iwlwifi 0000:29:00.0: enabling device (0000 -> 0002)
[ 8.506356] iwlwifi 0000:29:00.0: Direct firmware load for iwl-dbg-cfg.ini failed with error -2
[ 8.508040] iwlwifi 0000:29:00.0: loaded firmware version 29.62a39462.0 3168-29.ucode op_mode iwlmvm
[ 8.508145] iwlwifi 0000:29:00.0: Direct firmware load for iwl-debug-yoyo.bin failed with error -2
[ 8.647266] iwlwifi 0000:29:00.0: Detected Intel(R) Dual Band Wireless AC 3168, REV=0x220
[ 8.664835] iwlwifi 0000:29:00.0: Can't parse phy_sku in B0, empty sections
[ 8.665891] iwlwifi 0000:29:00.0: Failed to read NVM: -61
[ 8.666938] iwlwifi 0000:29:00.0: Collecting data: trigger 17 fired.
[ 8.668130] iwlwifi 0000:29:00.0: Start IWL Error Log Dump:
[ 8.669150] iwlwifi 0000:29:00.0: Status: 0x00000040, count: 6
[ 8.670163] iwlwifi 0000:29:00.0: Loaded firmware version: 29.62a39462.0 3168-29.ucode
[ 8.671173] iwlwifi 0000:29:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
[ 8.672192] iwlwifi 0000:29:00.0: 0x000002F0 | trm_hw_status0
[ 8.673196] iwlwifi 0000:29:00.0: 0x00000000 | trm_hw_status1
[ 8.674189] iwlwifi 0000:29:00.0: 0x0004171E | branchlink2
[ 8.675186] iwlwifi 0000:29:00.0: 0x000446B2 | interruptlink1
[ 8.676174] iwlwifi 0000:29:00.0: 0x000446B2 | interruptlink2
[ 8.677144] iwlwifi 0000:29:00.0: 0x00000000 | data1
[ 8.678107] iwlwifi 0000:29:00.0: 0x00000080 | data2
[ 8.679064] iwlwifi 0000:29:00.0: 0x07030000 | data3
[ 8.680018] iwlwifi 0000:29:00.0: 0x00000000 | beacon time
[ 8.680963] iwlwifi 0000:29:00.0: 0x00001995 | tsf low
[ 8.681896] iwlwifi 0000:29:00.0: 0x00000000 | tsf hi
[ 8.682821] iwlwifi 0000:29:00.0: 0x00000000 | time gp1
[ 8.683728] iwlwifi 0000:29:00.0: 0x00001995 | time gp2
[ 8.684623] iwlwifi 0000:29:00.0: 0x00000009 | uCode revision type
[ 8.685517] iwlwifi 0000:29:00.0: 0x0000001D | uCode version major
[ 8.686394] iwlwifi 0000:29:00.0: 0x62A39462 | uCode version minor
[ 8.687266] iwlwifi 0000:29:00.0: 0x00000220 | hw version
[ 8.688130] iwlwifi 0000:29:00.0: 0x00C89200 | board version
[ 8.688985] iwlwifi 0000:29:00.0: 0x00110188 | hcmd
[ 8.689832] iwlwifi 0000:29:00.0: 0x00022000 | isr0
[ 8.690671] iwlwifi 0000:29:00.0: 0x00000000 | isr1
[ 8.691503] iwlwifi 0000:29:00.0: 0x00000002 | isr2
[ 8.692333] iwlwifi 0000:29:00.0: 0x004000C0 | isr3
[ 8.693144] iwlwifi 0000:29:00.0: 0x00000000 | isr4
[ 8.693950] iwlwifi 0000:29:00.0: 0x00110188 | last cmd Id
[ 8.694756] iwlwifi 0000:29:00.0: 0x00000000 | wait_event
[ 8.695547] iwlwifi 0000:29:00.0: 0x0000407A | l2p_control
[ 8.696339] iwlwifi 0000:29:00.0: 0x00000000 | l2p_duration
[ 8.697120] iwlwifi 0000:29:00.0: 0x00000000 | l2p_mhvalid
[ 8.697895] iwlwifi 0000:29:00.0: 0x00000000 | l2p_addr_match
[ 8.698659] iwlwifi 0000:29:00.0: 0x00000007 | lmpm_pmg_sel
[ 8.699415] iwlwifi 0000:29:00.0: 0x16070617 | timestamp
[ 8.700171] iwlwifi 0000:29:00.0: 0x00341018 | flow_ha...

[Zayed Amer Al-Saidi (zayed-alsaidi)]

With Linux 5.4.0-39-generic, it works fine. Please close this bug.