Ubuntu 20.04を実行しているDell Inspiron 5593の有線イーサネット接続に問題があります。接続しようとすると、引き続きパスワードを聞いてみますね。 Windowsオペレーティングシステムでは、有線接続を使用できます。
走るlspci
00:00.0 Host bridge: Intel Corporation Device 8a12 (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Iris Plus Graphics G7 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Device 8a03 (rev 03)
00:14.0 USB controller: Intel Corporation Ice Lake-LP USB 3.1 xHCI Host Controller (rev 30)
00:14.2 RAM memory: Intel Corporation Device 34ef (rev 30)
00:15.0 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2C Controller #0 (rev 30)
00:15.1 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2C Controller #1 (rev 30)
00:16.0 Communication controller: Intel Corporation Management Engine Interface (rev 30)
00:17.0 SATA controller: Intel Corporation Ice Lake-LP SATA Controller [AHCI mode] (rev 30)
00:19.0 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2c Controller #4 (rev 30)
00:1d.0 PCI bridge: Intel Corporation Ice Lake-LP PCI Express Root Port #9 (rev 30)
00:1d.1 PCI bridge: Intel Corporation Device 34b1 (rev 30)
00:1d.4 PCI bridge: Intel Corporation Device 34b4 (rev 30)
00:1f.0 ISA bridge: Intel Corporation Ice Lake-LP LPC Controller (rev 30)
00:1f.3 Audio device: Intel Corporation Smart Sound Technology Audio Controller (rev 30)
00:1f.4 SMBus: Intel Corporation Ice Lake-LP SMBus Controller (rev 30)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP SPI Controller (rev 30)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 07)
02:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 31)
03:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a809
走る設定されている場合:
enp1s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 98:e7:43:23:ee:98 txqueuelen 1000 (Ethernet)
RX packets 428 bytes 88040 (88.0 KB)
RX errors 0 dropped 124 overruns 0 frame 0
TX packets 11 bytes 198 (198.0 B)
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 11433 bytes 1017879 (1.0 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 11433 bytes 1017879 (1.0 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.43.134 netmask 255.255.255.0 broadcast 192.168.43.255
inet6 fe80::82e7:348:ff4f:ef24 prefixlen 64 scopeid 0x20<link>
ether 40:23:43:c8:91:53 txqueuelen 1000 (Ethernet)
RX packets 2689989 bytes 3915552343 (3.9 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1395506 bytes 130709369 (130.7 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
走るnmcliデバイス:
*DEVICE TYPE STATE CONNECTION
wlp2s0 wifi connected Quick Hospot
p2p-dev-wlp2s0 wifi-p2p disconnected --
enp1s0 ethernet unavailable --
lo loopback unmanaged --
（イーサネットケーブルを接続すると、enp1s0の状態が「Connecting」と表示されます。）
走る路線:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default _gateway 0.0.0.0 UG 600 0 0 wlp2s0
link-local 0.0.0.0 255.255.0.0 U 1000 0 0 wlp2s0
192.168.43.0 0.0.0.0 255.255.255.0 U 600 0 0 wlp2s0
走る情報:https://pastebin.com/PG7yZdYw
別の解決策を試しましたが、何も機能しません。