Rtl810xe pci express linux

Realtek R8101 linux driver source

This is the official linux driver source for Realtek RTL8101E/RTL8102E/RTL8103E/RTL8105E/RTL8106E/RTL8107E FE 100M NICs, obtained from here. Tested on Ubuntu 20.04 in my Dell Inspiron 1440 laptop, ethernet works flawlessly with a speed of 95 Mbps upload and download.

Since Ubuntu 18 these NICs are being used with the default r8169 driver (which is for the R8169 gigabit ethernet controller only), which causes terrible download and upload speeds. Installing the official driver for 810xE series fixes it.

Driver version: 1.035.03
Release date: 26/05/2020

NOTE: I upgraded to another laptop few months ago so I’m no longer maintaining this repo.

How to install this driver?

First of all, clone this repo to some folder and cd into that folder
Install basic dependencies for compiling the driver: sudo apt install build-essential linux-headers-$(uname -r)
Unload the existing r8169 driver: sudo modprobe -r r8169
Block the r8169 driver in modprobe: sudo sh -c ‘echo blacklist r8169 >> /etc/modprobe.d/blacklist.conf’
Run the automatic build & install script: sudo ./autorun.sh . Ignore errors if any.
Check if the driver is loaded: lsmod | grep r8101 , it will return a single line like r8101 204800 0
If the driver is not loaded, then run sudo modprobe r8101 .
Now try connecting. If you don’t see the connection then you might need a reboot.
Enjoy ethernet speeds upto 100Mbps!

Some additional info

/r8101, the link status can be forced to one of the 4 modes as following command. # insmod ./src/r8101.ko speed=SPEED_MODE duplex=DUPLEX_MODE autoneg=NWAY_OPTION where SPEED_MODE = 100 for 100Mbps = 10 for 10Mbps DUPLEX_MODE = 0 for half-duplex = 1 for full-duplex NWAY_OPTION = 0 for auto-negotiation off (true force) = 1 for auto-negotiation on (nway force) For example: # insmod ./src/r8101.ko speed=100 duplex=0 autoneg=1 will force PHY to operate in 100Mpbs Half-duplex(nway force). 2. Force the link status by using ethtool. a. Insert the driver first. b. Make sure that ethtool exists in /sbin. c. Force the link status as the following command. # ethtool -s ethX speed SPEED_MODE duplex DUPLEX_MODE autoneg NWAY_OPTION where SPEED_MODE = 100 for 100Mbps = 10 for 10Mbps DUPLEX_MODE = half for half-duplex = full for full-duplex NWAY_OPTION = off for auto-negotiation off (true force) = on for auto-negotiation on (nway force) For example: # ethtool -s eth0 speed 100 duplex full autoneg on will force PHY to operate in 100Mpbs Full-duplex(nway force). RTL8101E, RTL8102E and RTL8103E do not support Jumbo Frame. «>

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Official linux driver source for Realtek R810xE 100M ethernet controllers

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Arch Linux

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#1 2020-05-22 16:32:56

[Solved] Ethernet only during install, not on fresh system. RTL810xE

I consistently have a working Ethernet connection when booting from a USB pendrive with the `archlinux-2019.07.01-x86_64.iso` image on it, but there is consistently no ethernet when booting the installed system afterwards. Even the PCI device is missing.

This is on a quite old Toshiba Satellite C660-10E.

I have logged the outputs of `journalctl -b`, `lsmod`, and `lspci` for my various attempts to fix that, but they are 500kB uncompressed and 40k compressed. I have not found an option to attach a compressed file. Shall I post them as plain text in the forum?

It looks like the device is not even found on the installed system, but was present previously. The first file is `lspci` output from the installation system booted of the `archiso` image, the second file was created on the newly installed system:

The difference in kernel modules loaded is as follows:

So the modules `r8169` and `realtek` are loaded when booting from the ArchLinux install ISO, but not on the installed system. I have no idea whether the other differencs are relevant. I’ve tried to enforce loading `r8169` by

and got a system booting with `r8169` and `realtek` loaded, but still
no ethernet device. Comparing `lsmod` as before:

And the same for `lspci` output:

Again, the device is not there.

Searching for `r8169` in the jpournal after booting `archiso`, the “normal” installed system, and the system with enforced loading of `r8169`, I’ve found:

So just loading `r8169` did not do the trick.

I have also tried to load module `r8168` instead of `r8169`, and blacklisted the latter (as was suggested somewhere on the internet, but I cannot find it again), but anyways, the `r8168` module is not available:

Any help would be apreciated. Thank you very much!

Last edited by stefan (2020-05-28 19:59:57)

#2 2020-05-23 13:00:21

Re: [Solved] Ethernet only during install, not on fresh system. RTL810xE

Have you installed the linux-firmware package?

#3 2020-05-23 15:29:24

Re: [Solved] Ethernet only during install, not on fresh system. RTL810xE

Yes, `linux-firmware-20200421.78c0348-1` is installed.

#4 2020-05-24 10:16:45

Re: [Solved] Ethernet only during install, not on fresh system. RTL810xE

Does the most recent Arch ISO image also offer a working connection? Perhaps there has been a kernel regression affecting your ethernet device since July last year.

EDIT: you should probably post the full output of ‘journalctl -b’ here, I’m not downloading that log (but somebody else might if you prefer to wait).

Last edited by Head_on_a_Stick (2020-05-24 10:18:01)

#5 2020-05-24 14:40:18

Re: [Solved] Ethernet only during install, not on fresh system. RTL810xE

Interesting. I’ve just tried this with booting from a pendrive with `archlinux-2020.05.01-x86_64.iso`, and here the ethernet device is *not* present.

So you’re right, something whith «being newer» triggers this problem. But I can’t tell if it’s a “kernel regression”, or the configuration of the system used when booting the archiso image has changed. Anything I could look at?

I’ll post the output of `journalctl -b` of the system booted from `archlinux-2020.05.01-x86_64.iso` below. Out of curiosity: What stops you from downloading? Don’t work? Security considerations?

#6 2020-05-24 17:51:09

Re: [Solved] Ethernet only during install, not on fresh system. RTL810xE

For now you could try to install arch linux with linux-lts as the kernel.

#7 2020-05-25 20:37:59

Re: [Solved] Ethernet only during install, not on fresh system. RTL810xE

linux-lts? I’ll try that, but may be not before Thursday.

For the time being, shall I rename the thread into sth. like “archiso regression for Realtek RTL810xE [renamed]”?

If it works with linux-lts, what would be the next steps?

#8 2020-05-26 04:11:19

Re: [Solved] Ethernet only during install, not on fresh system. RTL810xE

linux-lts? I’ll try that, but may be not before Thursday.

For the time being, shall I rename the thread into sth. like “archiso regression for Realtek RTL810xE [renamed]”?

If it works with linux-lts, what would be the next steps?

if it works use it. LTS is LTS for a reason. Newest kernels tend to focus on newest features. If you have a kernel that is brand new and supporting every device from the past 50 years, imagine the size of that beast! And who is using the newest kernel with that 50 year old gear? no one i assure you. I have run into this problem with an old gigabyte brix with an amd apu that hasnt been supported with proprietary drivers for like 5 years. Thing still works, not throwing it away. It has arch linux on it right now but fr how much longer? Eventually i’ll be on LTS kernel as well. I will be sad to see it fall into disuse before it quits functioning but such is often the way of things. You’ll be good with LTS i bet. Lots of life left in your Toshiba.

BTW, I also use arch, gentoo, artix & manjaro

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