Printer connection problem with Ubuntu 14

[AeroMonkeyDork]

I'm having a problem that just recently started, where I can't connect to my printer (RAMBO controller USB 2.0 connection) via a laptop running Ubuntu 14 with Simplify3D. I can connect to it on another laptop running Windows 7 with the Simplify3D machine interface. I can also connect to it on the Ubuntu laptop if I use the console tool from the Arduino IDE. I've checked that the Baud rate and the port name are correct in Simplify3D.

This is a recent problem because I have been able to connect to the printer (and print happily) using the Ubuntu laptop previously, but when I applied some system updates for Ubuntu, I started being unable to connect. The message I get when trying to connect using the Simplify3D machine interface on the Ubuntu laptop is "WARNING: device unplugged while connecting to port".

Any suggestions? My setup:
Ubuntu 14 32 bit
RAMBO 1.3 - Marlin firmware
Simplify3D 3.0.2

Thanks

[CompoundCarl]

I'm pretty sure that message means that the serial connection was forcefully closed (usually from something like unplugging the USB cable or the printer being shut off). Not sure why your ubuntu update would cause something like that to happen..

If it helps, I don't see this problem on 14.04 LTS

[AeroMonkeyDork]

I'm fairly certain I'm running 14.04 LTS too. So at this point I'm leaning toward it being some problem on the Simplify3D side, given that I can communicate with the printer via the Arduino IDE's console tool. I don't know what I don't know about USB and I really don't know what I don't know about Linux (that laptop used to run 32 bit Windows XP, and I didn't figure putting Windows 7 on it was a good idea. Therefore, I switched it to Linux.) Is there something that Simplify3D would be looking at to tell that the port is being used or was incorrectly disconnected once upon a time? (And perhaps that just needs to have a boolean switch flipped?)

The other option I'm considering is uninstalling and reinstalling S3D on it. Kinda don't want to do that though.

[CompoundCarl]

You said this problem just started, correct? So S3D used to work fine for communicating with your printer? If so, you may want to try going to Help --> Reset All Settings. This will take the software back to the stock configuration, which it sounds like worked fine for your originally.

If the software worked before (and it works fine for me on 14.04), then I'd think it's either a setting you changed or something else on the OS or with the electronics.

[AeroMonkeyDork]

Yes, the problem just started. I'll give the reset all option a whirl. If that doesn't work I think I'll try uninstalling S3D and see what happens.

[AeroMonkeyDork]

Well, I finally got a chance to try a bunch of things.

Reset all -> No effect
run Simplify3D as sudo -> No effect
uninstall/reinstall Simplify3D -> No effect

Anyone have other suggestions?