Comment 23 for bug 1314556

I have the same issue.
I use:
- Ubuntu 14.04.1 LTS
- Example device that does not work: Samsung Galaxy S2, Android 2.3.6

Environment: Device was connected to USB Hub and then to Ubuntu machine.

I observed that:
- Device icon is visible on Ubuntu desktop.
But when I click that then I cannot go inside. I can see only message:
Failed to mount Samsung Android
Unable to open MTP device
- Device is visible via adb
- Ubuntu restart and plugging in device (USB debugging on and screen saver off) does not help
- when I run mtpfs from command line I can see: Unable to open ~/.mtpz-data for reading

Will this issue be fixed soon?
Should upgrade to Ubuntu 14.10 help to fix that?

This is urgent issue for me as Ubuntu user and I hope it can be fixed soon

Regards
Piotr