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笔记本电脑从睡眠状态唤醒时显示“以太网电缆已拔出”

tag-icon • tag-icon networking 18.04 suspend ethernet
笔记本电脑从睡眠状态唤醒时显示“以太网电缆已拔出”

每当我将笔记本电脑从睡眠状态唤醒时，我都会遇到这个奇怪的问题，无法检测到以太网连接。我设法通过删除网络模块并再次添加它来使其正常工作。

rmmod r8169
modprobe r8169

但是我想让这些唤醒无缝进行，我不想在膝上电脑唤醒时手动运行这些命令以建立以太网连接。

uname -a
Linux pc-name 4.16.0-041600-generic #201804012230 SMP Sun Apr 1 22:31:39 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

ifconfig -a
enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.50  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::7020:d2e9:225b:9004  prefixlen 64  scopeid 0x20<link>
        ether 54:48:10:e3:a3:56  txqueuelen 1000  (Ethernet)
        RX packets 5919  bytes 3436132 (3.4 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 5752  bytes 667433 (667.4 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 8101  bytes 610092 (610.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8101  bytes 610092 (610.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.114  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::392d:4fdb:372f:3381  prefixlen 64  scopeid 0x20<link>
        ether 34:e1:2d:f8:1d:f3  txqueuelen 1000  (Ethernet)
        RX packets 9592  bytes 4262963 (4.2 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6766  bytes 1125519 (1.1 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

请让我分享有助于解决问题的其他信息，但我不知道哪些。

谢谢

答案1

几年前，我在一台旧笔记本电脑上也发生过同样的事情，我使用了这个脚本：

#!/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

/lib/systemd/system-sleep将脚本放在名为 的目录中r8169-reset。使用命令将脚本标记为可执行

sudo chmod a+x /lib/systemd/system-sleep/r8169-reset

重新启动并且脚本将在每次挂起后恢复时自动运行。

答案2

在 中terminal输入sudo lshw -C network，然后查找如下行：

product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller

注意 8168。

如果您有类似的控制器，您可以尝试安装此驱动程序，看看它是否可以解决您的问题。

sudo apt-get update
sudo apt-get install dkms r8168-dkms

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