win10 和 ubuntu20.04 双系统，ubuntu 中有线网不能联网问题

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问题现象：

ubuntu 中右上角的有限连接显示正常，但是无论是自动获取 IP 或者手动设置静态 IP，都不能联网或者不能连接网口工业相机

原因猜测：

1、win10 中显卡占用
2、ubuntu20.04 中网卡驱动不对

解决方案：

1、需要在 win10 中的网络设置中，右击以太网属性，选择配置-高级，再弹窗中选择关机唤醒功能，关闭该功能。或者直接右击以太网，选择禁用

2、在 ubuntu20.04 中更新显卡驱动

2.1 在 ubuntu20.04 中查看显卡信息

• 在终端输入 lspci
• 查看返回信息，网卡一般以 Network controller或者Ethernet controller开头

 - 00:00.0 Host bridge: Intel Corporation 10th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
 - 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th
   Gen Core Processor PCIe Controller (x16) (rev 02)
 - 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics
   (rev 05)
 - 00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
 - 00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
 - 00:12.0 Signal processing controller: Intel Corporation Comet Lake PCH Thermal Controller
 - 00:12.6 Serial bus controller [0c80]: Intel Corporation Comet Lake PCH Serial IO SPI Controller #2
 - 00:14.0 USB controller: Intel Corporation Comet Lake USB 3.1 xHCI Host Controller
 - 00:14.2 RAM memory: Intel Corporation Comet Lake PCH Shared SRAM
 - 00:14.3 Network controller: Intel Corporation Wi-Fi 6 AX201
 - 00:15.0 Serial bus controller [0c80]: Intel Corporation Comet Lake PCH Serial IO I2C Controller #0
 - 00:15.1 Serial bus controller [0c80]: Intel Corporation Comet Lake PCH Serial IO I2C Controller #1
 - 00:16.0 Communication controller: Intel Corporation Comet Lake HECI Controller
 - 00:17.0 SATA controller: Intel Corporation Device 06d3
 - 00:1b.0 PCI bridge: Intel Corporation Comet Lake PCI Express Root Port #17 (rev f0)
 - 00:1d.0 PCI bridge: Intel Corporation Comet Lake PCI Express Root Port #9 (rev f0)
 - 00:1d.6 PCI bridge: Intel Corporation Device 06b6 (rev f0)
 - 00:1e.0 Communication controller: Intel Corporation Comet Lake PCH Serial IO UART Host Controller #0
 - 00:1e.2 Serial bus controller [0c80]: Intel Corporation Comet Lake PCH Serial IO SPI Controller #0
 - 00:1e.3 Serial bus controller [0c80]: Intel Corporation Comet Lake PCH Serial IO SPI Controller #1
 - 00:1f.0 ISA bridge: Intel Corporation Comet Lake LPC Controller
 - 00:1f.3 Audio device: Intel Corporation Comet Lake PCH cAVS
 - 00:1f.4 SMBus: Intel Corporation Comet Lake PCH SMBus Controller
 - 00:1f.5 Serial bus controller [0c80]: Intel Corporation Comet Lake PCH SPI Controller
 - 01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f95 (rev a1)
 - 01:00.1 Audio device: NVIDIA Corporation Device 10fa (rev a1)
 - 06:00.0 Non-Volatile memory controller: KIOXIA Corporation Device 0001
 - 07:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a809
 - 08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)

• 可以看出我的有线网卡型号是 RTL8111/8168/8411
• 继续在终端输入ifconfig找到自己对应的网卡名
• 终端输入ethtool -i eth0 最后面是网卡名

 - driver: r8169
 - version: 8.052.01-NAPI
 - firmware-version: 
 - expansion-rom-version: 
 - bus-info: 0000:08:00.0
 - supports-statistics: yes
 - supports-test: no
 - supports-eeprom-access: no
 - supports-register-dump: yes
 - supports-priv-flags: no

• 可以看出我的驱动是8169，和我的网卡8168不符，所以需要重新安装对应的网卡驱动

2.2 在 ubuntu20.04 中安装显卡驱动

• 下载网卡驱动 https://www.realtek/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-pci-express-software
  
• 卸载原驱动（我的如上面所述 是8169）
• sudo rmmod r8169
• 解压下载的驱动包
• tar -jxvf r8168-8.052.01.tar.bz2
• 编译
• cd r8168-8.052.01/src/
• sudo make all
• 安装驱动
• chmod +x autorun.sh
• sudo ./autorun.sh
• 重启 reboot

处理结果：

第二种解决方案目前是有效的，解决了我的问题，特此总结

致谢参考内容：
https://forum.ubuntu/viewtopic.php?f=116&t=463646
https://blog.csdn/qq_43566496/article/details/129915300

本文标签： 双系统Ubuntu