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✅ Solution
Tags:
networking
18.04
suspend
ethernet
Link:
🔍 See Original Answer on Ask Ubuntu ⧉ 🔗
URL:
https://askubuntu.com/q/1156038
Title:
Ethernet 'cable unpluged' when waking up laptop from sleep
ID:
/2019/07/04/Ethernet-_cable-unpluged_-when-waking-up-laptop-from-sleep
Created:
July 4, 2019
Upload:
May 5, 2024
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Same thing happened to me years ago on an older laptop and I used this script:
#!/bin/bash
# NAME: r8169-reset
# PATH: /lib/systemd/system-sleep
# DESC: Reset Ethernet card after suspend, not working automatically
# DATE: Feb ?? 2017. Modified: Aug 5, 2018.
MYNAME=$0
restart_ethernet() {
/usr/bin/logger $MYNAME 'restart_ethernet(r8169) BEGIN'
/sbin/modprobe -v -r r8169
/sbin/modprobe -v r8169
/usr/bin/logger 'systemctl restart NetworkManager.service (SUPPRESED)'
/usr/bin/logger $MYNAME 'restart_ethernet(r8169) END'
}
/usr/bin/logger $MYNAME 'case=[' ${1}' ]'
case "${1}/${2}" in
hibernate|suspend|pre*)
;;
resume|thaw|post*)
restart_ethernet;;
esac
Place the script in the directory /lib/systemd/system-sleep with the name r8169-reset. Mark the script executable with the command
sudo chmod a+x /lib/systemd/system-sleep/r8169-reset
Reboot and script will run automatically with every resume after suspend.