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I once cold booted my laptop and the wifi stopped working completely.
This is the error I get from dmesg when I filter for wireless driver
info only.
Relevant specs:
---------------
Operating System:
Distributor ID: Ubuntu
Description: Ubuntu 20.04.1 LTS
Release: 20.04
Codename: focal
PC make: Dell Inspiron 7586 2-in-1
Linux Firmware: linux-firmware/focal-updates,focal-updates,now 1.187.4 all
[installed]
Linux Headers: 5.4.0-42-generic
$dmesg | grep iwlwifi
[ 8.050151] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[ 8.073632] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM
[ 8.073635] iwlwifi 0000:00:14.3: Found debug configuration: 0
[ 8.073898] iwlwifi 0000:00:14.3: loaded firmware version 46.6bf1df06.0
op_mode iwlmvm
[ 8.133208] iwlwifi 0000:00:14.3: Detected Intel(R) Dual Band Wireless AC
9460, REV=0x318
[ 8.156288] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM
[ 8.159789] iwlwifi 0000:00:14.3: Allocated 0x00400000 bytes for firmware
monitor.
[ 8.164794] iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting
0x0.
[ 8.164799] iwlwifi 0000:00:14.3: Not valid error log pointer 0x00000000 for
Init uCode
[ 8.164816] iwlwifi 0000:00:14.3: Fseq Registers:
[ 8.164822] iwlwifi 0000:00:14.3: 0x98402404 | FSEQ_ERROR_CODE
[ 8.164825] iwlwifi 0000:00:14.3: 0x34504D88 | FSEQ_TOP_INIT_VERSION
[ 8.164828] iwlwifi 0000:00:14.3: 0x65A63677 | FSEQ_CNVIO_INIT_VERSION
[ 8.164831] iwlwifi 0000:00:14.3: 0x015660A5 | FSEQ_OTP_VERSION
[ 8.164834] iwlwifi 0000:00:14.3: 0x39BEFAFE | FSEQ_TOP_CONTENT_VERSION
[ 8.164837] iwlwifi 0000:00:14.3: 0xC1B9DFF0 | FSEQ_ALIVE_TOKEN
[ 8.164841] iwlwifi 0000:00:14.3: 0x00409810 | FSEQ_CNVI_ID
[ 8.164844] iwlwifi 0000:00:14.3: 0xFFEE77FF | FSEQ_CNVR_ID
[ 8.164847] iwlwifi 0000:00:14.3: 0x01000100 | CNVI_AUX_MISC_CHIP
[ 8.164882] iwlwifi 0000:00:14.3: 0xA5A5A5A2 | CNVR_AUX_MISC_CHIP
[ 8.164951] iwlwifi 0000:00:14.3: 0xA5A5A5A2 |
CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 8.165020] iwlwifi 0000:00:14.3: 0xA5A5A5A2 |
CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 8.165247] iwlwifi 0000:00:14.3: SecBoot CPU1 Status: 0xa5a5a5a2, CPU2
Status: 0xa5a5a5a2
[ 8.165251] iwlwifi 0000:00:14.3: Failed to start INIT ucode: -5
[ 8.165253] iwlwifi 0000:00:14.3: Collecting data: trigger 16 fired.
[ 8.411263] iwlwifi 0000:00:14.3: Firmware not running - cannot dump error
[ 8.424358] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -5
**My wireless network adapter is recognized by the OS.**
name@name:~$ lspci
00:14.3 Network controller: Intel Corporation Cannon Point-LP CNVi
[Wireless-AC] (rev 30)
name@name:~$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
name@name:~$ sudo lshw -C network
[sudo] password for name:
*-network
description: Network controller
product: Cannon Point-LP CNVi [Wireless-AC]
vendor: Intel Corporation
physical id: 14.3
bus info: pci@0000:00:14.3
version: 30
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list
configuration: driver=iwlwifi latency=0
resources: irq:16 memory:a121c000-a121ffff
Resolutions attempted:
- Downloading official iwlwifi drivers from Intel, Dell and my /lib/firmware
folder (-34.ucode from Intel and Dell and also the -33, -34, -38, -41, -43 and
-46.ucode from /lib/firmware)
- Downloading the backport iwlwifi drivers from PPA
Research: My suspicion is that there might be a conflict with the
Bluetooth module (hindering the correct firmware from being loaded) as
there was a time the wifi briefly worked then stopped when I turned off
Bluetooth. However, now I can't turn off Bluetooth and wifi. As you can
see, the radio kill button has just the Bluetooth option which doesn't
even work.
Please help me?
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: kernel-bug
--
Wifi stopped working: Init ucode -5 [Intel Wireless 9560]
https://bugs.launchpad.net/bugs/1903794
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