every once and a while… laptops and notebooks run out of battery… and when one manages to plug them in just 1% before stalling… the wifi on Debian might already be in hibernation and hardware on off does not help to bring it back to life.
(this ought to happen automatically when power cord is plugged in but it’s not in:
root@debian:~# hostnamectl Static hostname: debian Icon name: computer-laptop Chassis: laptop Operating System: Debian GNU/Linux 9 (stretch) Kernel: Linux 4.9.0-11-amd64 Architecture: x86-64 # how to fix it, restart network manager systemctl restart NetworkManager.service dmesg # might show something like: [ 2913.745644] wlp3s0: deauthenticating from 98:..:..:..:.. by local choice (Reason: 3=DEAUTH_LEAVING) [ 2913.829419] PM: Hibernation mode set to 'suspend' [ 2913.860431] (NULL device *): firmware: direct-loading firmware iwlwifi-7260-17.ucode [ 2913.860448] PM: Syncing filesystems ... [ 3362.080393] thinkpad_acpi: EC reports that Thermal Table has changed
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