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Raspberry Pi 4 上的 Ubuntu 20.04-有线连接正常但未被检测到

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Raspberry Pi 4 上的 Ubuntu 20.04-有线连接正常但未被检测到

我在使用 Plasma 的 Ubuntu 20.04 上，并且在我的 Pi 4 上，我可以通过有线连接访问网络，但系统仍然显示我处于离线状态。

例如，我可以通过 ssh 更新软件包，但不能通过 Discover 更新，它表示我处于离线状态。网络小程序有有线连接图标，但如果我打开小程序，它会显示无连接，鼠标悬停在标签上会显示我已断开连接。

安装 kdenetwork 后，我可以看到无线连接，但看不到有线连接。

这是我的ifconfig eth0

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 192.168.1.87  netmask 255.255.255.0  broadcast 192.168.1.255
inet6 fe80::dea6:32ff:fe27:38a6  prefixlen 64  scopeid 0x20<link>
inet6 2001:b07:ae5:db90:dea6:32ff:fe27:38a6  prefixlen 64  scopeid 0x0<global>
ether dc:a6:32:27:38:a6  txqueuelen 1000  (Ethernet)
RX packets 306938  bytes 97042582 (97.0 MB)
RX errors 0  dropped 1171  overruns 0  frame 0
TX packets 485041  bytes 661433930 (661.4 MB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

我ethtool eth0收到

Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        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
        Advertised FEC modes: Not reported
        Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
                                             1000baseT/Half 1000baseT/Full
        Link partner advertised pause frame use: No
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 1000Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
Cannot get wake-on-lan settings: Operation not permitted
        Current messsudo age level: 0x00000007 (7)
                               drv probe link
        Link detected: yes

也许我遗漏了什么？

答案1

您是否发行了 Rpi 官方版本？您是否尝试过 wlan 连接？如果是，结果如何？您是否在使用 eth0 时打开了 wlan？尝试断开 wlan，这可能会产生某种 IP 冲突

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