We're unable to reproduce this; and while it's possible that it's related to the use of USB 3.0 vs. USB 2.0 on the host, that would make it a host / driver / hardware issue rather than a bug in MTP.
I'm marking this as Incomplete for now, to be brought back to New should we figure out how to properly reproduce it with a clear indication that something is broken in the mtp code. ** Changed in: mtp (Ubuntu) Status: In Progress => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mtp in Ubuntu. https://bugs.launchpad.net/bugs/1376344 Title: MTP can access locked device data after rebooting Status in “mtp” package in Ubuntu: Incomplete Bug description: ENVIRONMENT: Device: ubuntu-rtm/14.09 build 3 Desktop: Ubuntu 14.10 SUMMARY: MTP can access locked device data after rebooting STEPS: 1) Ensure device is locked with PIN/passphrase and showing locked greeter 2) Insert USB cable and try to access device content over MTP - No content is displayed as expected 3) Reboot device, leaving USB cable connected 4) When device is rebooted and still locked, try and access device content over MTP again EXPECTED RESULT: It should not be possible to view device content using MTP whilst the device is locked ACTUAL RESULT: You can copy and view all content on device using MTP whilst device is still locked. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mtp/+bug/1376344/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp