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Ethernet connection can't be detected in my PC with Ubuntu 22.04.2 LTS OS, this question is also similar to this post, even after trying the suggested answers the problem was not solved.

This is what I get when I run the command lshw -C network:

  *-network:1 DISABLED
       description: Ethernet interface
       product: Ethernet Connection (11) I219-LM
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: eno2
       version: 00
       serial: 74:78:27:0b:62:45
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=5.15.0-69-generic duplex=full firmware=0.4-4 latency=0 link=no multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:152 memory:c4400000-c441ffff

When I run the command sudo ifconfig wlan0 up, I get the following error message:

wlan0: ERROR while getting interface flags: No such device
alpha027
  • 131

1 Answers1

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I followed the selected answer on the following post. It worked for me.

Edit file /usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf and change its content from :

[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:wwan

to :

[keyfile]
unmanaged-devices=*,except:type:ethernet,except:type:wifi,except:type:wwan

And then run :

sudo service NetworkManager restart

That's all. Hope this works for you too

Brandli
  • 3
alpha027
  • 131