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jole

Member

Registered: 2020-06-10

Posts: 17

[SOLVED] Ethernet driver for KVM display Philips 49B2U5900CH/00

I just replaced my Lenovo KVM display with a Philips 49B2U5900CH/00, but I can't reach the ethernet device on the KVM.

lsusb

gives:

[0][jole@holtedahlfonna]~
  $ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 04f2:b604 Chicony Electronics Co., Ltd Integrated Camera (1280x720@30)
Bus 001 Device 004: ID 0cf3:e500 Qualcomm Atheros Communications
Bus 001 Device 022: ID 2109:2817 VIA Labs, Inc. USB2.0 Hub
Bus 001 Device 023: ID 0bda:4c86 Realtek Semiconductor Corp. PHL 49B2U5900CH
Bus 001 Device 024: ID 2109:2817 VIA Labs, Inc. USB2.0 Hub
Bus 001 Device 025: ID 2109:8884 VIA Labs, Inc. USB Billboard Device
Bus 001 Device 026: ID 1c4f:0027 SiGma Micro USB Keyboard
Bus 001 Device 027: ID 045e:00cb Microsoft Corp. Basic Optical Mouse v2.0
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
[0][jole@holtedahlfonna]~
  $

I can see the device as Device 023.

But when I run

nmcli device

I get this

DEVICE  TYPE      STATE                   CONNECTION
enp1s0  ethernet  connected               Wired connection 1
lo      loopback  connected (externally)  lo

The device is not shown.

Anyone had similar issues that could offer some pointers?

Best regards
/Jon

Last edited by jole (2025-09-14 09:34:51)

-thc

Member

Registered: 2017-03-15

Posts: 992

Re: [SOLVED] Ethernet driver for KVM display Philips 49B2U5900CH/00

This Realtek device  is so new that searching for

0bda:4c86 or 0BDA:4C86

or the "Windoze notation"

USB\VID_0BDA&PID_4C86

yields no useful results.

Can you attach that display to a Windoze device? Maybe that will uncover the Realtek hardware device type.

jole

Member

Registered: 2020-06-10

Posts: 17

Re: [SOLVED] Ethernet driver for KVM display Philips 49B2U5900CH/00

Ah, good idea - thanks.

I did, and as I read it, this monitor does not present the Ethernet adapter over USB-B uplink, only USB-C.

/Jon