我遇到了这个相当常见的问题。我刚刚安装了Ubuntu 18.04.2 LTS 桌面（并选择了最小安装）在东芝 C660-10F 笔记本电脑上，并一直将其连接到我的 LAN 网络。在安装过程中，我有一些网络连接，但重启后它停止工作。每当我拔下电缆、打开计算机并将其插入时，LAN 连接就可以正常工作。睡眠后连接也会断开。当我不使用电缆重新启动计算机，然后将其插入时，它也无法工作。我需要关闭它，然后在不使用电缆的情况下将其打开。
我已经尝试了该线程的第一个答案，但是没有用，也许我做错了什么？
我将 /etc/network/interfaces 文件更改为
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto wlp6s0
iface wlp6s0 inet dhcp
ifconfig 打印：
benutzer@C660-10F:~$ ifconfig
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 (Lokale Schleife)
RX packets 6849 bytes 586042 (586.0 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6849 bytes 586042 (586.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp6s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.14 netmask 255.255.255.0 broadcast 10.0.0.255
inet6 fe80::6754:328a:2ca:11be prefixlen 64 scopeid 0x20<link>
ether 4c:ed:de:74:66:22 txqueuelen 1000 (Ethernet)
RX packets 81100 bytes 104343532 (104.3 MB)
RX errors 0 dropped 0 overruns 0 frame 6385
TX packets 50258 bytes 4861359 (4.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17
lshw-C 网络
benutzer@C660-10F:~$ sudo lshw -C network
[sudo] Passwort für benutzer:
*-network
Beschreibung: Kabellose Verbindung
Produkt: BCM4313 802.11bgn Wireless Network Adapter
Hersteller: Broadcom Inc. and subsidiaries
Physische ID: 0
Bus-Informationen: pci@0000:06:00.0
Logischer Name: wlp6s0
Version: 01
Seriennummer: 4c:ed:de:74:66:22
Breite: 64 bits
Takt: 33MHz
Fähigkeiten: pm msi pciexpress bus_master cap_list ethernet physical wireless
Konfiguration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) latency=0 multicast=yes wireless=IEEE 802.11
Ressourcen: irq:17 memory:d1400000-d1403fff
lspci -v | grep -i 以太网 -A 10
benutzer@C660-10F:~$ sudo lspci -v | grep -i ethernet -A 10
[sudo] Passwort für benutzer:
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)
Subsystem: Toshiba America Info Systems RTL810xE PCI Express Fast Ethernet controller
Flags: bus master, fast devsel, latency 0, IRQ 16
I/O ports at 3000 [size=256]
Memory at d0404000 (64-bit, prefetchable) [size=4K]
Memory at d0400000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable+ Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
猫/etc/netplan/*.yaml
benutzer@C660-10F:~$ cat /etc/netplan/*.yaml
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
如果在局域网连接时打印配置：
benutzer@C660-10F:~$ ifconfig
enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.25 netmask 255.255.255.0 broadcast 10.0.0.255
inet6 fe80::111c:c864:1de2:e3eb prefixlen 64 scopeid 0x20<link>
ether 88:ae:1d:fc:15:51 txqueuelen 1000 (Ethernet)
RX packets 5804097 bytes 6757236146 (6.7 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 7843422 bytes 7870222047 (7.8 GB)
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 (Lokale Schleife)
RX packets 1299 bytes 127499 (127.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1299 bytes 127499 (127.4 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp6s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.14 netmask 255.255.255.0 broadcast 10.0.0.255
inet6 fe80::6754:328a:2ca:11be prefixlen 64 scopeid 0x20<link>
ether 4c:ed:de:74:66:22 txqueuelen 1000 (Ethernet)
RX packets 286334 bytes 277731993 (277.7 MB)
RX errors 0 dropped 0 overruns 0 frame 44517
TX packets 81969 bytes 6275155 (6.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17
我还尝试将 enp1s0 添加到 /etc/network/interfaces 文件中，然后重新启动计算机，但这没有帮助，所以我撤消了该文件中的所有更改。现在它只剩下前三行
插入并连接以太网电缆，关闭 Wi-Fi：
benutzer@C660-10F:~$ sudo lshw -C network
[sudo] Passwort für benutzer:
*-network
Beschreibung: Ethernet interface
Produkt: RTL810xE PCI Express Fast Ethernet controller
Hersteller: Realtek Semiconductor Co., Ltd.
Physische ID: 0
Bus-Informationen: pci@0000:01:00.0
Logischer Name: enp1s0
Version: 05
Seriennummer: 88:ae:1d:fc:15:51
Größe: 100Mbit/s
Kapazität: 100Mbit/s
Breite: 64 bits
Takt: 33MHz
Fähigkeiten: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
Konfiguration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=10.0.0.25 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
Ressourcen: irq:16 ioport:3000(Größe=256) memory:d0404000-d0404fff memory:d0400000-d0403fff
*-network DEAKTIVIERT
Beschreibung: Kabellose Verbindung
Produkt: BCM4313 802.11bgn Wireless Network Adapter
Hersteller: Broadcom Inc. and subsidiaries
Physische ID: 0
Bus-Informationen: pci@0000:06:00.0
Logischer Name: wlp6s0
Version: 01
Seriennummer: 4c:ed:de:74:66:22
Breite: 64 bits
Takt: 33MHz
Fähigkeiten: pm msi pciexpress bus_master cap_list ethernet physical wireless
Konfiguration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) latency=0 multicast=yes wireless=IEEE 802.11
Ressourcen: irq:17 memory:d1500000-d1503fff
benutzer@C660-10F:~$ lspci -v | grep -i ethernet -A 20
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)
Subsystem: Toshiba America Info Systems RTL810xE PCI Express Fast Ethernet controller
Flags: bus master, fast devsel, latency 0, IRQ 16
I/O ports at 3000 [size=256]
Memory at d0404000 (64-bit, prefetchable) [size=4K]
Memory at d0400000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169
06:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4313 802.11bgn Wireless Network Adapter (rev 01)
Subsystem: Askey Computer Corp. BCM4313 802.11bgn Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at d1500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: wl
Kernel modules: bcma, wl
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 05)
Subsystem: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers
Flags: bus master, fast devsel, latency 0
答案1
你的/etc/network/interfaces文件看起来应该像这样：
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
然后，在terminaldo 中：
sudo apt-get install dkms r8168-dkms# 安装不同的以太网驱动程序
reboot# 重启计算机并验证网络运行情况
更新＃1：
让我们手动加载它的驱动程序...
sudo -H gedit /etc/modules# 编辑此文件
在文件末尾添加：
# load ethernet driver at boot time
r8168
保存文件。退出编辑器。使用连接的以太网电缆重新启动。