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#1 2020-12-28 21:49:46

strum355
Member
Registered: 2020-12-28
Posts: 2

No network with Realtek RTL8125 2.5GbE R8169/R8125

Motherboard: Gigabyte B550i Aorus MX Pro

Kernel: Linux archlinux 5.10.0-1-mainline

Drivers tried: r8169, r8125

Attempted: DHPC (gets IP on boot but no network, no IP on subsequent config/service reloads), static IP (same result).

At one stage, [inline]ethtool -s eno1 speed 100[/inline] resulted in working network, setting back to 1000 and back to 100 no longer worked.

Been trying for a few hours so I may have missed some info from attempts/

$ ethtool eno1
Settings for eno1:
	Supported ports: [ TP	MII ]
	Supported link modes:   10baseT/Half 10baseT/Full
	                       100baseT/Half 100baseT/Full
	                       1000baseT/Full
	                       2500baseT/Full
	Supported pause frame use: Symmetric Receive-only
	Supports auto-negotiation: Yes
	Supported FEC modes: Not reported
	Advertised link modes:  10baseT/Half 10baseT/Full
	                       100baseT/Half 100baseT/Full
	                       1000baseT/Full
	                       2500baseT/Full
	Advertised pause frame use: Symmetric Receive-only
	Advertised auto-negotiation: Yes
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  10baseT/Half 10baseT/Full
	                                    100baseT/Half 100baseT/Full
	                                    1000baseT/Full
	Link partner advertised pause frame use: Symmetric
	Link partner advertised auto-negotiation: Yes
	Link partner advertised FEC modes: Not reported
	Speed: 1000Mb/s
	Duplex: Full
	Auto-negotiation: on
	master-slave cfg: preferred slave
	master-slave status: slave
	Port: MII
	PHYAD: 0
	Transceiver: external
	Supports Wake-on: pumbg
	Wake-on: d
	Link detected: yes
$ lshw -class network
  *-network                 
       description: Ethernet interface
       product: RTL8125 2.5GbE Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: eno1
       version: 05
       serial: 18:c0:4d:66:00:9c
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.10.0-1-mainline duplex=full firmware=rtl8125b-2_0.0.2 07/13/20 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
       resources: irq:33 ioport:f000(size=256) memory:fc300000-fc30ffff memory:fc310000-fc313fff
$ lspci -knn | grep Eth -A4
05:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev 05)
	DeviceName: RTL8111E Giga LAN
	Subsystem: Gigabyte Technology Co., Ltd Device [1458:e000]
	Kernel driver in use: r8169
	Kernel modules: r8169, r8125

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#2 2020-12-29 16:48:18

erebus
Member
Registered: 2020-12-29
Posts: 1

Re: No network with Realtek RTL8125 2.5GbE R8169/R8125

It looks like the active driver is the r8169 driver. Have you tried blacklisting it?

This is what I have for kernel 5.9.14-zen1-1-zen:
cat /etc/modprobe.d/r8169.conf

blacklist r8169

EDIT: I have r8125-dkms package from AUR installed as well.

Last edited by erebus (2020-12-29 16:54:53)

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#3 2020-12-29 20:44:47

strum355
Member
Registered: 2020-12-28
Posts: 2

Re: No network with Realtek RTL8125 2.5GbE R8169/R8125

erebus wrote:

It looks like the active driver is the r8169 driver. Have you tried blacklisting it?

This is what I have for kernel 5.9.14-zen1-1-zen:
cat /etc/modprobe.d/r8169.conf

blacklist r8169

EDIT: I have r8125-dkms package from AUR installed as well.

Have tried with r8125-dkms and also r8125 from https://github.com/LouisTakePILLz/r8125/ with neither giving results, with r8169 blacklisted

Last edited by strum355 (2020-12-29 20:45:05)

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#4 2020-12-29 20:50:17

loqs
Member
Registered: 2014-03-06
Posts: 14,282

Re: No network with Realtek RTL8125 2.5GbE R8169/R8125

strum355 wrote:

Have tried with r8125-dkms and also r8125 from https://github.com/LouisTakePILLz/r8125/ with neither giving results, with r8169 blacklisted

The module did not load?  The device was not detected by the module?  There device did not detect a link,  could not obtain an IP e.t.c.?  Please provide specifics.

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