Disconnecting android phone

I have a weird problem. I can connect my android phone to my laptop, it keeps connecting/disconnecting (about twice per second). I tried on another laptop with Ubuntu installed, and it worked fine.

Big problem is that, aside of no file transfer, I can't charge my phone. I keep getting the message "unable to open MTP device '[usb:003,]'", where num keeps increasing (I assume it is communication attempts).

What may be causing this problem? I have no idea where to start. It's the only USB device that does that (my ipod charges fine, and I can even access the music no problem).

Is there a way I can "deaden" one of the usb ports, such that only power is provided, but no data transfer attempts?

P.S.: My phone is a Samsung Galaxy S2.

P.P.S: It does that on all USB ports.

2 Answers

For me it was the usb cable which was bad, with a good quality USB cable it corrected the problem

And as a workaround, using Samba on your phone as mentioned in [this tread][1] worked for me as the best solution (take a look @ the sdcard share adding in the settings of the application)

Use the PTP connection instead of MTP - for some reason I always have this problem in Ubuntu_{, but never in Fedora...}

You should get a Notification on connection, touch it and select PTP:

I think on older versions of Android there was 'Mass Storage Mode'

Works on Android 4.1

Also, make sure libmtp is installed.

_{Also note, there is a revolutionary concept - turning the phone off...}