Public bug reported:

The network card inside my laptop will stop detecting connections after a while 
whithout having an ethernet cable inserted. in the gnome settings, it will show 
that there is no cable conected. The lights on the port on the laptop won't 
light up, but those on the port of the switch will light up when the laptop is 
connected. I got this problem in kernel 5.15, 5.19 and 6.2(ubuntu 23.04 
upgraded from 22.04). the problem won't occur if i use a usb NIC.
I wasn't able to find a true cause for this, but right after reboot, the cable 
will work with the integrated card.

this is returned when doing ifconfig. as you can see, the card
transfered some data before not working.

enp1s0f0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 9c:2d:cd:d4:c6:45  txqueuelen 1000  (Ethernet)
        RX packets 1626450  bytes 2260480956 (2.2 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 348415  bytes 30674255 (30.6 MB)
        TX errors 1  dropped 0 overruns 0  carrier 0  collisions 0


ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: network-manager 1.42.4-1ubuntu2
ProcVersionSignature: Ubuntu 6.2.0-25.25-generic 6.2.13
Uname: Linux 6.2.0-25-generic x86_64
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Jul 15 04:00:21 2023
InstallationDate: Installed on 2022-12-03 (224 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 
(20220809.1)
IpRoute:
 default via 192.168.2.1 dev enxa0cec8778fcf proto dhcp src 192.168.2.223 
metric 100
 169.254.0.0/16 dev virbr0 scope link metric 1000 linkdown
 192.168.2.0/24 dev enxa0cec8778fcf proto kernel scope link src 192.168.2.223 
metric 100
 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: network-manager
UpgradeStatus: Upgraded to lunar on 2023-07-07 (7 days ago)
nmcli-nm:
 RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  WIFI  
    WWAN-HW  WWAN
 running  1.42.4   connected  started  full          enabled     enabled  
disabled  missing  disabled

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lunar wayland-session

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/2027850

Title:
  ethernet cable not detected

Status in network-manager package in Ubuntu:
  New

Bug description:
  The network card inside my laptop will stop detecting connections after a 
while whithout having an ethernet cable inserted. in the gnome settings, it 
will show that there is no cable conected. The lights on the port on the laptop 
won't light up, but those on the port of the switch will light up when the 
laptop is connected. I got this problem in kernel 5.15, 5.19 and 6.2(ubuntu 
23.04 upgraded from 22.04). the problem won't occur if i use a usb NIC.
  I wasn't able to find a true cause for this, but right after reboot, the 
cable will work with the integrated card.

  this is returned when doing ifconfig. as you can see, the card
  transfered some data before not working.

  enp1s0f0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
          ether 9c:2d:cd:d4:c6:45  txqueuelen 1000  (Ethernet)
          RX packets 1626450  bytes 2260480956 (2.2 GB)
          RX errors 0  dropped 0  overruns 0  frame 0
          TX packets 348415  bytes 30674255 (30.6 MB)
          TX errors 1  dropped 0 overruns 0  carrier 0  collisions 0


  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: network-manager 1.42.4-1ubuntu2
  ProcVersionSignature: Ubuntu 6.2.0-25.25-generic 6.2.13
  Uname: Linux 6.2.0-25-generic x86_64
  ApportVersion: 2.26.1-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Jul 15 04:00:21 2023
  InstallationDate: Installed on 2022-12-03 (224 days ago)
  InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 
(20220809.1)
  IpRoute:
   default via 192.168.2.1 dev enxa0cec8778fcf proto dhcp src 192.168.2.223 
metric 100
   169.254.0.0/16 dev virbr0 scope link metric 1000 linkdown
   192.168.2.0/24 dev enxa0cec8778fcf proto kernel scope link src 192.168.2.223 
metric 100
   192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 
linkdown
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: network-manager
  UpgradeStatus: Upgraded to lunar on 2023-07-07 (7 days ago)
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI      WWAN-HW  WWAN
   running  1.42.4   connected  started  full          enabled     enabled  
disabled  missing  disabled

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https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/2027850/+subscriptions


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