我最近安装了带有 Windows 双启动的 ubuntu 16.04。现在，我的以太网在 Ubuntu 上无法使用，但在 Windows 上可以。我用 Google 搜索并尝试了所有方法，但没有任何变化。以下是一些输出：
sudo lshw-类网络
*-network DISABLED
description: Wireless interface
product: RTL8191SEvB Wireless LAN Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: wlp5s0
version: 10
serial: 48:5d:60:44:42:f4
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8192se driverversion=4.15.0-46-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:18 ioport:3000(size=256) memory:f0500000-f0503fff
*-network
description: Ethernet interface
product: JMC250 PCI Express Gigabit Ethernet Controller
vendor: JMicron Technology Corp.
physical id: 0.5
bus info: pci@0000:06:00.5
logical name: enp6s0f5
version: 03
serial: 00:90:f5:ae:76:c7
size: 10Mbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msix msi bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=jme driverversion=1.0.8 duplex=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:27 memory:f0600000-f0603fff ioport:4400(size=128) ioport:4000(size=256)
*-network
description: Ethernet interface
physical id: 2
logical name: enp0s29u1u1
serial: 36:2f:77:15:b4:6b
capabilities: ethernet physical
configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.35 link=yes multicast=yes
sudo ethtool enp6s0f5
Settings for enp6s0f5:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Half
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pg
Wake-on: g
Current message level: 0x000020c6 (8390)
probe link rx_err tx_err hw
Link detected: no
消息 | grep -e jme -e enp6
[ 5.490070] jme: JMicron JMC2XX ethernet driver version 1.0.8
[ 5.492985] jme 0000:06:00.5: can't disable ASPM; OS doesn't have ASPM control
[ 5.493973] jme 0000:06:00.5 eth0: JMC250 Gigabit Ethernet chiprev:23 pcirev:3 macaddr:00:90:f5:ae:76:c7
[ 5.550393] jme 0000:06:00.5 enp6s0f5: renamed from eth0
[ 27.900666] jme 0000:06:00.5 enp6s0f5: Link is down
[ 27.900725] IPv6: ADDRCONF(NETDEV_UP): enp6s0f5: link is not ready
[ 31.555055] IPv6: ADDRCONF(NETDEV_UP): enp6s0f5: link is not ready
lsmod | grep jme
jme 40960 0
mii 16384 2 usbnet,jme
配置文件
enp0s29u1u1 Link encap:Ethernet HWaddr 36:2f:77:15:b4:6b
inet addr:192.168.42.35 Bcast:192.168.42.255 Mask:255.255.255.0
inet6 addr: fe80::7834:7173:24c5:7b14/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7069 errors:0 dropped:0 overruns:0 frame:0
TX packets:6220 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3726480 (3.7 MB) TX bytes:1225159 (1.2 MB)
enp6s0f5 Link encap:Ethernet HWaddr 00:90:f5:ae:76:c7
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:27
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:695 errors:0 dropped:0 overruns:0 frame:0
TX packets:695 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:51893 (51.8 KB) TX bytes:51893 (51.8 KB)
wlp5s0 Link encap:Ethernet HWaddr 48:5d:60:44:42:f4
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
请帮忙..
答案1
这是一个知道错误从几年前开始，这个问题就没有得到彻底解决。JMicron 对此作出了如下回应：
JMC25x/JMC26x 千兆以太网芯片于 2008 年量产，当时 IEEE802.3az 规范尚未完成。因此，此芯片在连接到所有支持 IEEE 802.3az 的设备时都会出现连接问题，即如果“速度和双工”功能设置为“自动协商”模式或“1Gbps/全双工”模式，则链接功能不正常，即链接断开。因此，我们的软件工程师制定了一个解决方法 - ASD（自动降速）功能，当“速度和双工”功能设置为“自动协商”模式或“1Gbps/全双工”模式时，强制 LAN 速度保持在 100Mbps。我的建议是使用非 IEEE802.3az 千兆设备，这样您的连接速度将保持为 1Gbps。
为了使其正常工作，您可以做的就是将链接速度限制为 100 mbps：
sudo ethtool -s eth0 speed 100 duplex full
但这通常会在重启时丢失（我不知道如何正确地使其永久保留）。
我遇到了完全相同的问题。在我的 Ubuntu 和 Windows 分区中一切都正常，直到我切换了路由器。现在只有 Windows 分区可以以 1000 mbps 的速度工作，但我不完全明白微软是如何让它工作的。