Public bug reported:
Laptop: MSI Modern 14 A10RB laptop
Wireless card: Intel wireless AC 9462
In Kubuntu 19.10, after installation, it never works well. I decided to
try new kubuntu 20.04, after installation wifi works fine, but after
some minutes it crashes and never works well again. Continuous lost
connection and non navigable speed.
Looking at dmesg, I saw that iwlwifi crashes and restarts, infinitely
I add ppa
lspci
Network controller: Intel Corporation Wireless-AC 9462
dmesg
[ 2.596661] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[ 2.600933] iwlwifi 0000:00:14.3: Direct firmware load for
iwlwifi-QuZ-a0-jf-b0-50.ucode failed with error -2
[ 2.600971] iwlwifi 0000:00:14.3: Direct firmware load for
iwlwifi-QuZ-a0-jf-b0-49.ucode failed with error -2
[ 2.602895] iwlwifi 0000:00:14.3: TLV_FW_FSEQ_VERSION: FSEQ Version:
43.2.23.17
[ 2.603289] iwlwifi 0000:00:14.3: loaded firmware version 48.4fa0041f.0
op_mode iwlmvm
[ 2.674639] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9560 160MHz,
REV=0x354
[ 2.820613] iwlwifi 0000:00:14.3: base HW address: 80:32:53:91:04:2e
[ 2.899809] iwlwifi 0000:00:14.3 wlo1: renamed from wlan0
[ 4.443791] iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
...
[ 64.755941] iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
[ 336.099305] iwlwifi 0000:00:14.3: Queue 5 is stuck 199 44
[ 336.099495] iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting
0x0.
[ 336.099590] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
[ 336.099598] iwlwifi 0000:00:14.3: Status: 0x00000040, count: 6
[ 336.099604] iwlwifi 0000:00:14.3: Loaded firmware version: 48.4fa0041f.0
[ 336.099611] iwlwifi 0000:00:14.3: 0x00000084 | NMI_INTERRUPT_UNKNOWN
[ 336.099617] iwlwifi 0000:00:14.3: 0x00802AF4 | trm_hw_status0
[ 336.099621] iwlwifi 0000:00:14.3: 0x00000000 | trm_hw_status1
[ 336.099626] iwlwifi 0000:00:14.3: 0x004C2214 | branchlink2
[ 336.099631] iwlwifi 0000:00:14.3: 0x004BAB2A | interruptlink1
[ 336.099635] iwlwifi 0000:00:14.3: 0x004BAB2A | interruptlink2
[ 336.099640] iwlwifi 0000:00:14.3: 0x0000743C | data1
[ 336.099645] iwlwifi 0000:00:14.3: 0xFF000000 | data2
[ 336.099650] iwlwifi 0000:00:14.3: 0xF0000008 | data3
[ 336.099654] iwlwifi 0000:00:14.3: 0x7E40458D | beacon time
[ 336.099659] iwlwifi 0000:00:14.3: 0xED331A45 | tsf low
[ 336.099664] iwlwifi 0000:00:14.3: 0x00000013 | tsf hi
[ 336.099669] iwlwifi 0000:00:14.3: 0x00000000 | time gp1
[ 336.099674] iwlwifi 0000:00:14.3: 0x102E820F | time gp2
[ 336.099680] iwlwifi 0000:00:14.3: 0x00000001 | uCode revision type
[ 336.099685] iwlwifi 0000:00:14.3: 0x00000030 | uCode version major
[ 336.099690] iwlwifi 0000:00:14.3: 0x4FA0041F | uCode version minor
[ 336.099695] iwlwifi 0000:00:14.3: 0x00000351 | hw version
[ 336.099701] iwlwifi 0000:00:14.3: 0x00489004 | board version
[ 336.099705] iwlwifi 0000:00:14.3: 0x05C7001C | hcmd
[ 336.099710] iwlwifi 0000:00:14.3: 0x80020000 | isr0
[ 336.099714] iwlwifi 0000:00:14.3: 0x00000000 | isr1
[ 336.099719] iwlwifi 0000:00:14.3: 0x08F00002 | isr2
[ 336.099725] iwlwifi 0000:00:14.3: 0x00C1FFCD | isr3
[ 336.099730] iwlwifi 0000:00:14.3: 0x00000000 | isr4
[ 336.099735] iwlwifi 0000:00:14.3: 0x003E019C | last cmd Id
[ 336.099740] iwlwifi 0000:00:14.3: 0x0000743C | wait_event
[ 336.099745] iwlwifi 0000:00:14.3: 0x00004208 | l2p_control
[ 336.099749] iwlwifi 0000:00:14.3: 0x00002020 | l2p_duration
[ 336.099754] iwlwifi 0000:00:14.3: 0x0000033F | l2p_mhvalid
[ 336.099759] iwlwifi 0000:00:14.3: 0x000000E6 | l2p_addr_match
[ 336.099763] iwlwifi 0000:00:14.3: 0x00000009 | lmpm_pmg_sel
[ 336.099767] iwlwifi 0000:00:14.3: 0x00000000 | timestamp
[ 336.099772] iwlwifi 0000:00:14.3: 0x000060A4 | flow_handler
[ 336.099818] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
[ 336.099824] iwlwifi 0000:00:14.3: Status: 0x00000040, count: 7
[ 336.099830] iwlwifi 0000:00:14.3: 0x20000066 | NMI_INTERRUPT_HOST
[ 336.099835] iwlwifi 0000:00:14.3: 0x00000000 | umac branchlink1
[ 336.099839] iwlwifi 0000:00:14.3: 0xC008CF5C | umac branchlink2
[ 336.099844] iwlwifi 0000:00:14.3: 0x8048A78A | umac interruptlink1
[ 336.099849] iwlwifi 0000:00:14.3: 0x8048A78A | umac interruptlink2
[ 336.099854] iwlwifi 0000:00:14.3: 0x01000000 | umac data1
[ 336.099859] iwlwifi 0000:00:14.3: 0x8048A78A | umac data2
[ 336.099864] iwlwifi 0000:00:14.3: 0x00000000 | umac data3
[ 336.099868] iwlwifi 0000:00:14.3: 0x00000030 | umac major
[ 336.099873] iwlwifi 0000:00:14.3: 0x4FA0041F | umac minor
[ 336.099877] iwlwifi 0000:00:14.3: 0x102E8206 | frame pointer
[ 336.099882] iwlwifi 0000:00:14.3: 0xC0886284 | stack pointer
[ 336.099887] iwlwifi 0000:00:14.3: 0x003E019C | last host cmd
[ 336.099892] iwlwifi 0000:00:14.3: 0x00000000 | isr status reg
[ 336.099914] iwlwifi 0000:00:14.3: Fseq Registers:
[ 336.099935] iwlwifi 0000:00:14.3: 0xE0000021 | FSEQ_ERROR_CODE
[ 336.099956] iwlwifi 0000:00:14.3: 0x00260000 | FSEQ_TOP_INIT_VERSION
[ 336.099978] iwlwifi 0000:00:14.3: 0x80020006 | FSEQ_CNVIO_INIT_VERSION
[ 336.099999] iwlwifi 0000:00:14.3: 0x0000A384 | FSEQ_OTP_VERSION
[ 336.100021] iwlwifi 0000:00:14.3: 0x5AD0C011 | FSEQ_TOP_CONTENT_VERSION
[ 336.100043] iwlwifi 0000:00:14.3: 0x4552414E | FSEQ_ALIVE_TOKEN
[ 336.100065] iwlwifi 0000:00:14.3: 0x20000302 | FSEQ_CNVI_ID
[ 336.100086] iwlwifi 0000:00:14.3: 0x01300202 | FSEQ_CNVR_ID
[ 336.100108] iwlwifi 0000:00:14.3: 0x20000302 | CNVI_AUX_MISC_CHIP
[ 336.100131] iwlwifi 0000:00:14.3: 0x01300202 | CNVR_AUX_MISC_CHIP
[ 336.100153] iwlwifi 0000:00:14.3: 0x0000485B |
CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 336.100206] iwlwifi 0000:00:14.3: 0xA5A5A5A2 |
CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 336.100386] iwlwifi 0000:00:14.3: Collecting data: trigger 2 fired.
[ 336.100464] iwlwifi 0000:00:14.3: Hardware error detected. Restarting.
[ 336.638443] iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: backport-iwlwifi-dkms 8324-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-26.30-lowlatency 5.4.30
Uname: Linux 5.4.0-26-lowlatency x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Tue Apr 21 23:41:45 2020
PackageArchitecture: all
SourcePackage: backport-iwlwifi-dkms
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: backport-iwlwifi-dkms (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1874152
Title:
Intel Wireless-AC 9462 connectivity errors on 20.04
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