KDE Font problem in Ubuntu 20.04

[Christoph Pleger]

Hello,

Liam Proven wrote:

> For a VirtualBox guest _with hardware acceleration_ there are usually
> just 2 things to do. I described them in a blog post:
> 
> https://liam-on-linux.livejournal.com/33987.html
> 
> Note: I mention Unity3D and GNOME 3 there, because I got them working
> well this way. In my tests, I observed screen corruption with KDE.
> However, note that that blog post is 7 years old (!). Perhaps the KDE
> team have fixed this now.

Hm, obviously, the problem is really caused by the 3D acceleration setting in 
the the settings for the VirtualBox VM; when I disable the acceleration, the 
problem disappears. But I wonder why the problem occurs with acceleration, I 
have the guest additions installed (I installed the manually, not from the 
distributed package), modules vboxvideo and vmwgfx are loaded, and /var/log/
Xorg.0.log says that the VMware driver is used.

Regards
  Christoph