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  • rodw
  • rodw's Avatar
30 May 2026 23:40

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

There are a lot more tuning settings required but lets get the main one
Can you type: echo $(nproc)
and then back in grub customizer add isolcpus=X where X = $(nproc)-1 from what is printed from the line above.
Then reboot.
  • RMJ fabrication
  • RMJ fabrication
30 May 2026 22:43

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

My bad the PC is actually a HP Elitedesk 800 G1 USDT 
AMT is not disabled in BIOS where can I find those settings?   
  • PCW
  • PCW's Avatar
30 May 2026 21:57

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

OK a 8300 USDT uses Intel hardware and should be fine

Is AMT disabled in the BIOS?
  • RMJ fabrication
  • RMJ fabrication
30 May 2026 21:50

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

So some background information my plasma table electronics and mesa 7i76e are not new the PC is new a newer HP elite 8300 USDT I swapped it out recently following issues with this post forum.linuxcnc.org/plasmac/53087-qtplasm...e-0-in-middle-of-cut 
  • RMJ fabrication
  • RMJ fabrication
30 May 2026 21:22
  • PCW
  • PCW's Avatar
30 May 2026 20:37
  • RMJ fabrication
  • RMJ fabrication
30 May 2026 18:51
  • RMJ fabrication
  • RMJ fabrication
30 May 2026 18:32

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

The sudo grub-customizer did not disable eee for me.   
  • PCW
  • PCW's Avatar
30 May 2026 14:45

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

The reason ethtool is not found is that it's installed in /usr/sbin/
and that's not on the default user path. (but is in the default root path)
  • mgiaco
  • mgiaco
30 May 2026 14:00

Mesa 7i76e pncconf open loop stepper leadshine

Category: HAL

Its not working but i got everything to work.

github.com/mgiaco/ecam_cnc/ => axis
github.com/mgiaco/ecam_cnc/tree/probe_basic => probe basic

Now i am try to get manual tool change to work as i like.
  • rodw
  • rodw's Avatar
30 May 2026 10:27

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

once all that's done, do the ping command PCW asked for and share it. It should be pretty good now.
  • rodw
  • rodw's Avatar
30 May 2026 10:23 - 30 May 2026 10:28

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

type: sudo ethtool --set-eee eno1 eee off

this will be lost on boot so to make it permanent
type
sudo grub-customizer
open the second tab and on the line it says quiet, add: igb.EEE=0
save and reboot. 
check eee is off again with ethtool

With energy efficient Ethernet enabled, sometimes your NIC has a holiday which is not good for latency

Also type man hm2_eth and follow the instructions so disable coalescing if you have not done that yet on your 10.10.10.1 NIC
  • RMJ fabrication
  • RMJ fabrication
  • Asymmetrisch
  • Asymmetrisch
30 May 2026 05:22
Replied by Asymmetrisch on topic TTL to differential converter (STEP / DIR / ENABLE)

TTL to differential converter (STEP / DIR / ENABLE)

Category: Computers and Hardware

I have several motor controllers that are driven by differential signals (CLK, #CLK, DIR, #DIR) – the inputs (5V, Ri = 120 Ohm) are not optically isolated. At first glance, it seems that controlling it with my Mesa 7i76EU works perfectly.

For testing purposes, I'd like to use the parallel port or possibly a RP2040 – in addition, I have a "Benezan Mini Breakout Board" left over from a previous setup that I could use.
It would be great if there were a solution for this.
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