Fade to Black

What is the common point between a Desktop Manager (KDE Plasma) and a gorgeous 3D modeler (Blender) ? Something that was bugging me, a black screen. On KDE Plasma 5.8 with default settings, everything went pitch black when i toggle fullscreen, whereas in Blender, when I tried to use transparent reference images, nothing was displayed. It turned out there is a common problem with my underlying graphc card, an Intel HD Graphics 520, and OpenGL 3.1, when using partial transparency.

Workaround

For blender, running it with MESA_LOADER_DRIVER_OVERRIDE=i965 ./blender gets rid of this bug. Whereas for KDE, one should disable the fullscreen effect plugin.