Comment 105 for bug 285682

I'm having this same problem. I played around with it some and think I have an idea what the problem might be but I don't understand why. I tried three combinations of two different scenarios.

Scenario 1
1) Go into Preferences -> Removable Drives and Media
2) Set it to use gthumb (probably can be any photos program but I use gthumb so that's what I tested)

Scenario 2
1) Go into the File Browser
2) Select Edit -> Preferences
3) Go to the Media tab
4) Set it to gthumb (again can probably be any photos program)

I tried three combinations of the scenarios. First I tried enabling Scenario 1 while disabling Scenario 2. Then I tried enabling Scenario 2 and disabling Scenario 1. Finally I tried enabling both Scenarios at the same time.

When only Scenario 1 is enabled and I plug in the camera, it displays the Camera Import dialog box that has Import Photos and Ignore buttons. It also mounts the camera and an icon appears on the desktop with the name of the camera. If I press the Import Photos button I get the Import Photos dialog with the error listed in this bug. If I right click the camera mount icon on the desktop and select Unmount before I press the Import Photos button on the Camera Import dialog, everything works fine.

When I enable only Scenario 2, I never receive the Camera Import dialog with the Import Photos and Ignore buttons. It just directly displays the Import Photos dialog which contains the error. I briefly see the camera mount icon appear on the desktop and then vanish. I am not able to import the pictures no matter what I do when only this scenario is enabled.

When I enable both scenarios at the same time, both the Camera Import dialog with the Import Photos and Ignore buttons appears as well as the Import Photos dialog. The Import Photos dialog contains the error. The camera mount icon appears briefly on the screen and then vanishes as soon as I do anything at all. At this point I cannot do anything with the Import Photos dialog but close it since it contains the error. But if I choose the Import Photos button on the Camera Import dialog everything works just fine.

So all said, it appears to me that something is mounting the camera when you plug it in and then is not unmounting it properly. This then causes the error saying the camera is in use. But it seems the Import Photos dialog unmounts the camera and everything works fine after it has displayed the error.