Sony Ericsson z750 and C702: Media Transfer mode fails but Mass Storage mode works

[Boondoklife]

I am using Karmic 9.10

I am trying to mount my Sony Ericsson Z750a via usb on my computer.

I am able to mount the card and phone memory if I use the mass storage mode, but this disables my phone functions while using it. Less than ideal. Instead I want to use the media transfer mode, which acts just like the the usb transfer but allows for calls and sms messages to still come in.

I get quite a few errors with the media transfer mode, all seem to stem from it being seen as a camera in the udev rules.

If you need any more information, udev test outputs etc please let me know as I would love for this to just work.

[Przemek K. (azrael)]

I've got the same issue with SE C702. I'm getting an error: Error initialising camera: -60: Could not lock the device. See the attached screenshot. Mass storage mode works fine. In multimedia transfer mode I also can't transfer more than 128MB at once to the phone's flash card (4GB) - Ubuntu always sees exactly 128.4 MB of free space on the card in multimedia transfer mode.

[Przemek K. (azrael)]

Also the transfers in media transfer mode fail quite often, ie. 50% of the time. I often need to disconnect the phone and try again to make it work.

[Przemek K. (azrael)]

Similar bug: Bug #488504

[Przemek K. (azrael)]

More similar bugs:
Bug #485878
Bug #393092

[Przemek K. (azrael)]

Another similar bug: Bug #318939

[Przemek K. (azrael)]

The "Error initialising camera: -60: Could not lock the device" is still present in Ubuntu 10.04 (Lucid Lynx) when I connect the phone in "Phone mode" and "Multimedia transfer mode".
Mass storage mode works without this issue.

[Martin Pitt (pitti)]

This is not an udev issue, but needs to be handled in whatever application handles the device. It should probably be blocked from automounting then?

[Przemek K. (azrael)]

The application in Ubuntu would be Nautilus (or some Gnome backend).

On 20 August 2010 12:29, Martin Pitt <email address hidden> wrote:
> This is not an udev issue, but needs to be handled in whatever
> application handles the device. It should probably be blocked from
> automounting then?
>
> ** Package changed: udev (Ubuntu) => ubuntu
>
> ** Changed in: ubuntu
>   Importance: Undecided => Wishlist
>
> --
> Sony Ericsson z750 and C702: Media Transfer mode fails but Mass Storage mode works
> https://bugs.launchpad.net/bugs/495721
> You received this bug notification because you are a direct subscriber
> of the bug.
>

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