[Pkg-utopia-maintainers] Bug#1000965: Fails to bring up the Wifi after suspend - "authentication timed out"

[Holger Wansing]

Package: network-manager
Version: 1.30.0-2
Severity: important

Dear Maintainer,

I recently upgraded my Thinkpad T520 (which has Intel(R) Centrino(R) Advanced-N 6205 
wifi hardware) from Buster to Bullseye.
I use suspend/resume in a daily basis instead of completely shutdown/booting 
for years now (suspend to ram), and this worked without problems during Buster
lifecycle.

Now with Bullseye, this is no longer a useful way, because often the wifi does not 
work after suspending.
I have to reboot the machine to bring wifi back to work.
(or at least this is the only way I found, to make wifi work again. maybe something
like removing/reloading kernel modules or similar would also work, but I did not
succeed with such attempts.)

This happenes with a 5.10.0 kernel from bullseye, and it also happens, if I boot with
the older 4.19 kernel from Buster, which I still have installed from the buster
times.

I did some research on firmware for the wifi hardware, but the used 
iwlwifi-6000g2a-6.ucode firmware did not change from buster to bullseye (version is
18.168.6.1 for both), and downgrading the whole iwlwifi-firmware package to the Buster
version did not help, too.

Looking in the system log, I see lines like this:

Dec  1 18:20:07 t520 wpa_supplicant[510]: wlp3s0: SME: Trying to authenticate with c8:0e:14:5a:28:c7 (SSID='Zion2' freq=5300 MHz)
Dec  1 18:20:07 t520 kernel: [  342.607297] wlp3s0: authenticate with c8:0e:14:5a:28:c7
Dec  1 18:20:07 t520 kernel: [  342.611357] wlp3s0: send auth to c8:0e:14:5a:28:c7 (try 1/3)
Dec  1 18:20:07 t520 NetworkManager[477]: <info>  [1638379207.3696] device (wlp3s0): supplicant interface state: scanning -> authenticating
Dec  1 18:20:08 t520 kernel: [  344.097973] wlp3s0: send auth to c8:0e:14:5a:28:c7 (try 2/3)
Dec  1 18:20:09 t520 kernel: [  345.121870] wlp3s0: send auth to c8:0e:14:5a:28:c7 (try 3/3)
Dec  1 18:20:10 t520 kernel: [  346.113979] wlp3s0: authentication with c8:0e:14:5a:28:c7 timed out

so authentication fails for some reason.

I will sent the full system log to the bug, when I get the bug number.

Is there a way to get more detailed log information?
Would that be of interest for you?
Any other suggestions?


Regards,

Holger




-- System Information:
Debian Release: 11.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-9-amd64 (SMP w/4 CPU threads)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages network-manager depends on:
ii  adduser          3.118
ii  dbus             1.12.20-2
ii  libaudit1        1:3.0-2
ii  libbluetooth3    5.55-3.1
ii  libc6            2.31-13+deb11u2
ii  libcurl3-gnutls  7.74.0-1.3+b1
ii  libglib2.0-0     2.66.8-1
ii  libgnutls30      3.7.1-5
ii  libjansson4      2.13.1-1.1
ii  libmm-glib0      1.14.12-0.2
ii  libndp0          1.6-1+b1
ii  libnewt0.52      0.52.21-4+b3
ii  libnm0           1.30.0-2
ii  libpsl5          0.21.0-1.2
ii  libreadline8     8.1-1
ii  libselinux1      3.1-3
ii  libsystemd0      247.3-6
ii  libteamdctl0     1.31-1
ii  libudev1         247.3-6
ii  libuuid1         2.36.1-8
ii  policykit-1      0.105-31
ii  udev             247.3-6
ii  wpasupplicant    2:2.9.0-21

Versions of packages network-manager recommends:
ii  dnsmasq-base [dnsmasq-base]  2.85-1
ii  iptables                     1.8.7-1
ii  libpam-systemd               247.3-6
ii  modemmanager                 1.14.12-0.2
ii  ppp                          2.4.9-1+1
ii  wireless-regdb               2020.04.29-2

Versions of packages network-manager suggests:
ii  isc-dhcp-client  4.4.1-2.3
pn  libteam-utils    <none>


-- 
Holger Wansing <hwansing at mailbox.org>
PGP-Fingerprint: 496A C6E8 1442 4B34 8508  3529 59F1 87CA 156E B076