ubuntu and atmega2560

Can anyone enlighten me why the atmega2560 cant connect to pronterface on ubuntu?

Here is the situation . .i installed lubuntu (much hardware forgiving) to be a reprap workhorse (well sort off) . .

Installed all the programs i need for reprappin' fun . .

Tested sanguinololu 1.3a - okay
Tested ramps 1.4 marlin firmware (atmega1280) - all good
Ramps 1.4 marlin firmware (same setting as on the 1280) using atmega2560 board- fail. . .fail . .fail . .

I am able to load firmware on the atmega2560 using arduino 1.0.1. .but i cant seem to get it connect to pronterface .

Might be a easy fix for the well versed on the subject . .arduino/ ubuntu gurus out there?

Its like, its staring you in the eye . .but you just cant seem to figure it out . . Well tommorows another day . .

I've not tryed a real 2560 but I have just played with a Taurino Power 2560 (should be the same)

No real issues using it under ubuntu

I did find myne doesnt like 250000 baud, but editing the configuration.h back to 115200 and re uploading the firmware and it connects fine

It turns up as /dev/ttyACM0 which is a differnet name than the SL

Edited 1 time(s). Last edit at 02/27/2013 04:19AM by Dust.

Yup, took me about a day to figure that out . .hehehehehe . .i use 230400 on my baudrate . .it connects but havent really tested it on a working printer . .