Public bug reported:
Summary
=======
Installing linux-firmware 1.187.16, which became available on 17th Aug
2021, caused my wifi interface to disappear after reboot.
My machine:
Lenovo T15 Gen2
CPU: 11th Gen Intel(R) Core(TM) i7-1165G7
I tried force installing previous version 1.187.15, but that version isn't
available!
So, in the end, I rebooted into a live CD and re-installed the OS!
In the newly installed OS, I just made sure to NOT select linux-firmware
package in the list of available upgrades, and I will stick with version
1.187.15 till I have confidence there is better and working version.
NOTE:
On an older machine, with an older chipset, I did NOT experience this issue.
Older machine:
Lenovo x230
CPU: Intel(R) Core(TM) i5-3210M CPU
Wifi: Centrino Advanced-N 6205
System
======
I'm running Linux Mint Edge, based on Ubuntu 20.04, but with upgraded kernel
(5.11.0.34):
lsb_release -rd
Description: Linux Mint 20.2
Release: 20.2
Package
=======
apt-cache policy linux-firmware
linux-firmware:
Installed: 1.187.16
Candidate: 1.187.16
Version table:
*** 1.187.16 500
500 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
500 http://archive.ubuntu.com/ubuntu focal-updates/main i386 Packages
100 /var/lib/dpkg/status
1.187 500
500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages
500 http://archive.ubuntu.com/ubuntu focal/main i386 Packages
Expected
========
Upgrade to linux-firmware=1.187.16
Reboot.
Wifi network Interface must continue to be available and functioning.
What Happened
=============
Upgrade to linux-firmware=1.187.16
Reboot.
Wifi network interface disappeared.
Therefore, cannot use wifi.
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1943079
Title:
Installing latest linux-firmware (1.187.16) causes wifi interface to
disappear
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