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Old 01-04-2018, 12:24 PM   #1
stst
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Default DA100 Gigabit LAN

Hi,

I bought a Dell DA100 to have a Gigabit LAN port on my Inspiron Notebook. This works fine for Windows however in Linux (which is my preferred OS) it connects only with 100MBit/s.
Is there a way to tell DA100 to switch LAN to 1000MBit/s or does the linux driver not support it?

thanks,
Stefan
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Old 02-19-2018, 03:56 PM   #2
stst
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nobody can answer this question?
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Old 02-23-2018, 07:03 AM   #3
mlukaszek
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The device should give you 1 Gbit speed as it does under Windows. The Ethernet function is driven by kernel's built-in CDC-NCM driver.

What are the details of your setup? Does the device enumerate on USB3 in Linux?

Cheers,
Michal
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Old 02-28-2018, 05:14 AM   #4
stst
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Hi Michal,

how can I find out?
lsusb gives me:
Code:
$ lsusb 
Bus 002 Device 004: ID 17e9:436f DisplayLink 
Bus 002 Device 003: ID 2109:0210 VIA Labs, Inc. 
Bus 002 Device 002: ID 05e3:0612 Genesys Logic, Inc. 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
...
from ifconfig I get:
Code:
$ ifconfig 
enx9cebe859573b Link encap:Ethernet  Hardware Adresse 9c:eb:e8:59:57:3b  
          inet Adresse:10.0.0.41  Bcast:10.0.0.255  Maske:255.255.255.0
          inet6-Adresse: fe80::987:58c8:dda1:df87/64 Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
          RX-Pakete:9069489 Fehler:0 Verloren:1 Überläufe:0 Fenster:0
          TX-Pakete:8681087 Fehler:0 Verloren:0 Überläufe:0 Träger:0
          Kollisionen:0 Sendewarteschlangenlänge:1000 
          RX-Bytes:3711349332 (3.7 GB)  TX-Bytes:2047510486 (2.0 GB)
My System configuration is Ubuntu 16.04 LTS on a Dell Inspiron 5579

regards,
Stefan
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Old 03-21-2018, 03:58 PM   #5
stst
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Hi Michael,
do you still read this thread?
thanks, Stefan
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Old 03-29-2018, 01:38 PM   #6
mlukaszek
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In order to find out if it's running with USB 2.0 or 3.0 speed, the easiest way is to use the command
Code:
lsusb -t
which, apart from visualising the device tree for USB devices, shows the speed - either 12M, 480M or 5000M - for USB 1, 2, and 3 respectively.

Thanks,
Michal
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Old 05-01-2018, 05:02 PM   #7
stst
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Hi Michal,

that shows 5000M.
I updated to the latest Displaylink driver now, but network is still running with 100MBit/s

Any other idea?

regards,
Stefan
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