BCM5755M Gigabit speed?

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oppiman
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BCM5755M Gigabit speed?

Post by oppiman » Wed Nov 07, 2018 5:06 am

Hello,

I have an older Dell M4300 running Linux Mint 19 64bit.
All is fine, but I can't get the network card to support gigabit speed.

inxi -n
Network: Card-1: Broadcom Limited NetXtreme BCM5755M Gigabit Ethernet PCI Express driver: tg3
IF: enp9s0 state: up speed: 100 Mbps duplex: full

I tried ethtool speed and the gui, no luck.

Any chance?
Michael

ryron01
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Re: BCM5755M Gigabit speed?

Post by ryron01 » Mon Nov 12, 2018 7:00 pm

This might be kinda obvious, but make sure both sides can negotiate a gig. Some home gear can be limited to 100 Mbps.

oppiman
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Re: BCM5755M Gigabit speed?

Post by oppiman » Tue Nov 13, 2018 3:17 am

Thanks.
Both devices are capable of 1Gbps.
The same laptop using Windows connected to the same router runs at 1Gbps.
I have tested with a small gigabit hub as well. All other devices work as expected, just this notebook running linux won't.

oppiman
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Re: BCM5755M Gigabit speed?

Post by oppiman » Tue Nov 27, 2018 3:36 am

No idea anybody?
I have searched the web and tried many tools.
But still only 100Mbit/s.

oppiman
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Re: BCM5755M Gigabit speed?

Post by oppiman » Wed Jan 30, 2019 4:31 am

bump!

I have tried everything I could think of.
The card is capable of Gigabit, but no luck.

Anyone?

rene
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Re: BCM5755M Gigabit speed?

Post by rene » Fri Feb 01, 2019 12:32 pm

Please specify what it is that you have already tried with f.e. ethtool. I.e., does sudo ethtool -r enpXsY for the correct X and Y do something useful? What's the output of just sudo ethtool enpXsY?

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