Ubuntu
mtp package

[windows] copied files are duplicated

Bug #1351042 reported by Alex Kaluzhny
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
mtp (Ubuntu)
Fix Released
Critical
Mathieu Trudel-Lapierre

Bug Description

Files copied over MTP are shown duplicated on Windows.

Steps to reproduce:
- Windows PC->Control Panel->Device Manager
- Nexus 4 is shown under Portable devices
- Right click on Nexus 4, choose Update Driver
- click 'Browse my Computer for driver software'
- click Let my pick...
- select MTP USB Device
Windows installs MTP USB Device driver.
Unplug and plug USB cable back in.
Nexus 4 device will appear in Windows Explorer.
- Attempt to copy a file to a directory.

Click on Nexus 4 in Windows Explorer, try to copy a file to the filesystem. A copied file appears duplicated.

Expected result: Files are shown and can be copied, deleted on the device. Only one entry is displayed for each copied file.

See original description

Related branches

lp:~cyphermox/mtp/fix-1351042
Michael Frey (community): Approve
PS Jenkins bot: Approve (continuous-integration)
Diff: 50 lines (+25/-13)
1 file modified
server/UbuntuMtpDatabase.h (+25/-13)
lp:ubuntu/utopic/mtp
Mathieu Trudel-Lapierre (cyphermox)
Changed in mtp (Ubuntu):
status: New → Triaged
importance: Undecided → High
assignee: nobody → Mathieu Trudel-Lapierre (mathieu-tl)
Mathieu Trudel-Lapierre (cyphermox)
Changed in mtp (Ubuntu):
status: Triaged → In Progress
Revision history for this message
Víctor R. Ruiz (vrruiz) wrote :

With Windows 8 and Windows Media Player, the results are similar. No files are shown and no action can be performed.

Revision history for this message
Jean-Baptiste Lallement (jibel) wrote :

Setting to critical. Windows is still the 1rst operating system for PCs.

tags: added: qa-daily-testing qa-touch rtm14
Changed in mtp (Ubuntu):
importance: High → Critical
status: In Progress → Incomplete
Jean-Baptiste Lallement (jibel)
Changed in mtp (Ubuntu):
status: Incomplete → In Progress
Mathieu Trudel-Lapierre (cyphermox)
description: updated
Michael Frey (mfrey)
tags: added: touch-2014-09-12
Mathieu Trudel-Lapierre (cyphermox)
summary: - MTP is unusable on Nexus 4 connected to Windows host
+ [windows] copied files are duplicated
Michael Frey (mfrey)
tags: added: touch-2014-09-11
removed: touch-2014-09-12
Revision history for this message
Mathieu Trudel-Lapierre (cyphermox) wrote :

Fix is in silo 11; available for more testing (as far as I am concerned, after testing this behavior, it appears to resolve the issue)

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package mtp - 0.0.4+14.10.20140909-0ubuntu1

---------------
mtp (0.0.4+14.10.20140909-0ubuntu1) utopic; urgency=low

  [ Mathieu Trudel-Lapierre ]
  * Fix duplicated entries when copying files/directories on Windows.
    (LP: #1351042)
 -- Ubuntu daily release <email address hidden> Tue, 09 Sep 2014 03:47:19 +0000

Changed in mtp (Ubuntu):
status: In Progress → Fix Released
Revision history for this message
Selene ToyKeeper (toykeeper) wrote :

I don't have Windows, but I've seen a bug which looks like this using gmtp. I might be able to get some test results.

In my experience, only SD card devices (and files/dirs on the SD card) are duplicated. The device itself only ever has one entry per item.

Revision history for this message
Selene ToyKeeper (toykeeper) wrote :

FWIW, I saw the dupe file issue on gmtp. It was easy to reproduce -- connect to the SD card, send a file, disconnect, reconnect. There are then two of that file instead of one.

After installing the fix for this bug, that didn't happen any more.

However, I still occasionally see the duplicate-device issue, where the SD card shows up two or more times in the device list in gmtp, and each directory entry will also show up two or more times.

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