[Digikam-devel] [digikam] [Bug 359116] Video preview not scaling and slider not working

[Evert Vorster via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=359116

--- Comment #3 from Evert Vorster <evert.vorster at yandex.com> ---
I have a bit of new information for you, but it will need a little background
information. 

I run Arch, which is a decent Linux. I also work for a company that supplies me
with a Windows laptop that I HAVE to carry around. Since cabin luggage is
severely limited on airplanes, and all my work is of an international nature, I
have to leave behind my Arch laptop. 

I now carry around a USB drive with a duplicate of my home installation of
Arch. 

Depending on whether I need the speed of native close to the metal, I'll either
boot from the disk directly, or boot into Windows, and then use Virtual Box to
boot from the USB drive, allowing me to work and have access to my home data
and programs simultaneously. 

When I am running in VirtualBox, the scaling does not happen, as described
above. When I boot from the USB drive directly, the scaling is proper, like it
should be.

So, it would appear that DigiKam does not read my screen size correctly, or
maybe tries a hardware rescale that is not supported in VirtualBox.
Specifically, 2D and 3D acceleration has been turned off as they are not
compatible with each other and KF5. 

Hope this helps in tracking down the issue?

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