No ethernet after install of 20.3 (Solved by 5.15 Kernel)

[FUBAR]

I am new to Mint 20.3. My wifi works, but my ethernet is not? What do I need to post to get some help on this please?

Here are my results: Mate 20.3 64bit.

Code: Select all

System:
  Kernel: 5.4.0-91-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: MATE 1.26.0 info: mate-panel wm: marco 1.26.0 dm: LightDM 1.30.0 
  Distro: Linux Mint 20.3 Una base: Ubuntu 20.04 focal 
Machine:
  Type: Desktop System: ASUS product: N/A v: N/A serial: <filter> 
  Mobo: ASUSTeK model: TUF GAMING H570-PRO WIFI v: Rev 1.xx serial: <filter> 
  UEFI: American Megatrends v: 1410 date: 01/27/2022 
CPU:
  Topology: 6-Core model: 11th Gen Intel Core i5-11600KF bits: 64 
  type: MT MCP arch: N/A L2 cache: 12.0 MiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 93888 
  Speed: 801 MHz min/max: 800/4900 MHz Core speeds (MHz): 1: 801 2: 801 
  3: 800 4: 800 5: 801 6: 801 7: 801 8: 801 9: 801 10: 801 11: 800 12: 801 
Graphics:
  Device-1: NVIDIA GP108 [GeForce GT 1030] vendor: ASUSTeK driver: nouveau 
  v: kernel bus ID: 01:00.0 chip ID: 10de:1d01 
  Display: x11 server: X.Org 1.20.13 driver: modesetting 
  unloaded: fbdev,vesa compositor: marco v: 1.26.0 
  resolution: 1920x1080~60Hz 
  OpenGL: renderer: NV138 v: 4.3 Mesa 21.2.6 direct render: Yes 
Audio:
  Device-1: Intel vendor: ASUSTeK driver: snd_hda_intel v: kernel 
  bus ID: 00:1f.3 chip ID: 8086:43c8 
  Device-2: NVIDIA GP108 High Definition Audio vendor: ASUSTeK 
  driver: snd_hda_intel v: kernel bus ID: 01:00.1 chip ID: 10de:0fb8 
  Sound Server: ALSA v: k5.4.0-91-generic 
Network:
  Device-1: Intel driver: iwlwifi v: kernel port: N/A bus ID: 00:14.3 
  chip ID: 8086:43f0 
  IF: wlo1 state: up mac: <filter> 
  Device-2: Realtek RTL8125 2.5GbE vendor: ASUSTeK driver: N/A port: 4000 
  bus ID: 05:00.0 chip ID: 10ec:8125 
Drives:
  Local Storage: total: 4.55 TiB used: 646.71 GiB (13.9%) 
  ID-1: /dev/nvme0n1 vendor: Seagate model: FireCuda 530 ZP1000GM30023 
  size: 931.51 GiB speed: 63.2 Gb/s lanes: 4 serial: <filter> rev: SU6SM003 
  scheme: GPT 
  ID-2: /dev/nvme1n1 vendor: Sabrent model: Rocket 4.0 1TB size: 931.51 GiB 
  speed: 63.2 Gb/s lanes: 4 serial: <filter> rev: RKT401.3 scheme: GPT 
  ID-3: /dev/sda type: USB vendor: Samsung model: Portable SSD T5 
  size: 931.51 GiB serial: <filter> scheme: MBR 
  ID-4: /dev/sdb type: USB vendor: Samsung model: Portable SSD T5 
  size: 931.51 GiB serial: <filter> scheme: MBR 
  ID-5: /dev/sdc type: USB vendor: Western Digital 
  model: WD My Passport 25E2 size: 1.82 TiB serial: <filter> rev: 4004 
  scheme: GPT 
Partition:
  ID-1: / size: 915.40 GiB used: 11.13 GiB (1.2%) fs: ext4 
  dev: /dev/nvme0n1p2 
Sensors:
  System Temperatures: cpu: 29.0 C mobo: N/A gpu: nouveau temp: 33 C 
  Fan Speeds (RPM): N/A 
Repos:
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://packages.linuxmint.com una main upstream import backport #id:linuxmint_main
  2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
  3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
  4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
  5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
  6: deb http://archive.canonical.com/ubuntu/ focal partner
Info:
  Processes: 310 Uptime: 17m Memory: 15.47 GiB used: 1.27 GiB (8.2%) 
  Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.4.0 alt: 9 Shell: bash 
  v: 5.0.17 running in: mate-terminal inxi: 3.0.38 

[antikythera]

see the link in the big red forum rules box labeled "how to get help". it contains exactly what is required for us to be able to help you

[FUBAR]

I have edited my post to fit with guidelines. I don't know if this has been an issue before, I am not sure if others have my same system setup?

[sleeper12]

Install the 5.15 kernel in Update Manager, View, Linux Kernels & reboot. Hopefully, that will solve it.

[antikythera]

Install the 5.15 kernel in Update Manager, View, Linux Kernels & reboot. Hopefully, that will solve it.

Yes it might, the hardware is too new for kernel 5.4 but I don't know about the level of support for the realtek 2.5GbE being baked into even that kernel module set.

2.5G Ethernet LINUX driver r8125 for kernel up to 5.17 from here may be necessary. current version is 9.009.01, 2022/06/01 for clarity which download.

[sleeper12]

Yeah, I'm not sure either. But. no harm to try the 5.15 kernel first & see how it goes.

[antikythera]

There's a thread on the main Ubuntu forum about it, they ended up installing the upstream realtek driver. Maybe kernel 5.18 introduces support natively? It's not been out long so either that or realtek have not updated the driver on their site yet.

[FUBAR]

Yes the 5.15 fixed the Ethernet issue.,

Thanks