Public bug reported:
· Ubuntu version: 18.04.3 LTS
$ uname -a
Linux diego-PE62 4.15.0-70-generic #79-Ubuntu SMP Tue Nov 12 10:36:11 UTC 2019
x86_64 x86_64 x86_64 GNU/Linux
$ apt-cache policy linux-firmware
linux-firmware:
Installed: 1.173.12
Candidate: 1.173.12
Version table:
*** 1.173.12 500
500 http://es.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
500 http://es.archive.ubuntu.com/ubuntu bionic-updates/main i386
Packages
500 http://security.ubuntu.com/ubuntu bionic-security/main amd64
Packages
500 http://security.ubuntu.com/ubuntu bionic-security/main i386 Packages
100 /var/lib/dpkg/status
1.173 500
500 http://es.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
500 http://es.archive.ubuntu.com/ubuntu bionic/main i386 Packages
· "No wifi adapter found", or by console, no entry for Wireless
Controller
$ sudo rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
$ iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
$ sudo nmcli d
DEVICE TYPE STATE CONNECTION
eth0 ethernet connected Wired connection 1
lo loopback unmanaged --
· The Network controller is detected
$ sudo lshw -C network
*-network
description: Network controller
product: Wireless-AC 9560 [Jefferson Peak]
vendor: Intel Corporation
physical id: 14.3
bus info: pci@0000:00:14.3
version: 10
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list
configuration: driver=iwlwifi latency=0
resources: irq:16 memory:a4414000-a4417fff
*-network
description: Ethernet interface
product: QCA8171 Gigabit Ethernet
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 10
serial: 30:9c:23:ff:70:4e
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix bus_master cap_list ethernet
physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=alx duplex=full
ip=192.168.0.171 latency=0 link=yes multicast=yes port=twisted pair
speed=100Mbit/s
resources: irq:19 memory:a4300000-a433ffff ioport:3000(size=128)
· Seems to be due to this Microcode error, but could be another problem
$ sudo dmesg | grep iwlwifi
[ 4.467451] iwlwifi 0000:00:14.3: loaded firmware version 34.0.0 op_mode
iwlmvm
[ 4.491873] iwlwifi 0000:00:14.3: Detected Intel(R) Dual Band Wireless AC
9462, REV=0x318
[ 4.537038] iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting
0x0.
[ 4.537043] iwlwifi 0000:00:14.3: Not valid error log pointer 0x00000000 for
Init uCode
[ 4.537112] iwlwifi 0000:00:14.3: SecBoot CPU1 Status: 0x3, CPU2 Status:
0x2459
[ 4.537114] iwlwifi 0000:00:14.3: Failed to start INIT ucode: -5
[ 4.549567] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -5
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1852740
Title:
Microcode SW error detected Intel Wireless AC 9462
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