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Bug#928191: marked as done (firmware-iwlwifi: WiFi-breaking regression in latest Stretch point release (9.9), pkg ver 20161130-5 (includes solved workaround))

Your message dated Mon, 29 Apr 2019 23:28:35 +0100
with message-id <2ca112f8e24025bfb2370cc2aca0e3914bb20f83.camel@decadent.org.uk>
and subject line Re: Bug#928191: firmware-iwlwifi: WiFi-breaking regression in latest Stretch point release (9.9), pkg ver 20161130-5 (includes solved workaround)
has caused the Debian Bug report #928191,
regarding firmware-iwlwifi: WiFi-breaking regression in latest Stretch point release (9.9), pkg ver 20161130-5 (includes solved workaround)
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
928191: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=928191
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: firmware-iwlwifi
Version: 20161130-5
Severity: important
Tags: upstream

After the most recent point release upgrade, performed on a stock Debian Stable
amd64 system with 'apt-get update ; apt-get dist-upgrade', in which the package
firmware-iwlwifi was upgraded to a newer version (amongside many other packages
- I cannot be certain this one is positively the cause), all tested WiFi
internet connections that worked fine previously no longer connect. Instead,
the NetworkManager applet in my desktop panel only shows the "connecting"
animation for about 10 seconds, then silently fails to the standard
"disconnected" icon, with no successful internet connection. Previously these
tested connections were successful within one or two seconds of selecting the
desired network from the NM drop-down list.

Hardware info (with the "#" sign at the start of a line indicating a root
command prompt):

# lspci -nnvv | grep Network
...
03:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6235
[8086:088e] (rev 24)
...

This is a very common card and hopefully other users are not being impacted in
the same way I have been


Successful solved workaround:

Unload and reload the two kernel modules 'iwlwifi' and 'iwldvm'. I perform this
with these commands:

# rmmod iwldvm
# rmmod iwlwifi
# modprobe iwlwifi

After this, the connections all work correctly and as expected and experienced
before the 9.9 release.

Thank you to all the Debian Developers, Maintainers, and all other excellent
people working to make technology that helps the world.



-- System Information:
Debian Release: 9.9
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-9-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

firmware-iwlwifi depends on no packages.

firmware-iwlwifi recommends no packages.

Versions of packages firmware-iwlwifi suggests:
ii  initramfs-tools  0.130

-- no debconf information

--- End Message ---
--- Begin Message --- 
On Mon, 2019-04-29 at 12:34 -0400, David wrote:
> Package: firmware-iwlwifi
> Version: 20161130-5
> Severity: important
> Tags: upstream
> 
> After the most recent point release upgrade, performed on a stock Debian Stable
> amd64 system with 'apt-get update ; apt-get dist-upgrade', in which the package
> firmware-iwlwifi was upgraded to a newer version (amongside many other packages
> - I cannot be certain this one is positively the cause), all tested WiFi
> internet connections that worked fine previously no longer connect.

There were no changes to wifi firmware in this update, so this package
is unlikely to be the problem.

[...]
> After this, the connections all work correctly and as expected and experienced
> before the 9.9 release.
[...]

Given that you've resolved the problem (for now) I don't see much point
in investigating.  However, if this recurs, please open a bug against
the kernel instead.

Ben.

-- 
Ben Hutchings
compatible: Gracefully accepts erroneous data from any source

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