Comment 3 for bug 1436074

I'm guessing this is the same bug that is causing screenshots to be black. If you press the power key and volume key at the same time it will take a screenshot of the current screen but the resulting image will be black. Sounds like we should open a QtMir task

> On Mar 25, 2015, at 7:47 AM, Olivier Tilloy <email address hidden> wrote:
>
> The tab previews are implemented as image captures of the webviews,
> taken with the Item::grabToImage() method (http://doc.qt.io/qt-5/qml-
> qtquick-item.html#grabToImage-method). Here, the captures stored on disk
> are valid images (correct dimensions), but they are fully black, so it
> looks like something goes wrong when capturing the item or when saving
> the capture to disk.
>
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> report.
> https://bugs.launchpad.net/bugs/1436074
>
> Title:
> tab previews black [arale only]
>
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