I can confirm this problem exists on Cyanogen Mod 9 on my new S3 / i9300 (flashed with the current cm stable version).
When I plug the phone into 12.04 desktop (32bits), I get the error message "can not exclusively reserve device" (from memory), USB debug mode is "on". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/903422 Title: Mount / Provide access to Android 4 (Ice Cream Sandwich, ICS) MTP devices To manage notifications about this bug go to: https://bugs.launchpad.net/libmtp/+bug/903422/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs