https://bugs.kde.org/show_bug.cgi?id=359116
--- Comment #3 from Evert Vorster <evert.vors...@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? -- You are receiving this mail because: You are watching all bug changes.