Toady I noticed that my virtualbox guests (debian, centos, etc.) boot with a transparent window. I recalled that this happened quite some time ago already. The solution was to disable the compsitor. And this solves it now as well. If I turn off the compositor of XFCE the vbox guest windows are fine and have a solid background.
But where is this issue coming from all of a sudden? I did not have that for a long time. I am on Manjaro testing and the most recent virtualbox update is from 21. August:
[2020-08-23T21:57:38+0200] [ALPM] upgraded linux58-virtualbox-host-modules (6.1.12-6 -> 6.1.12-8)
Can anbody confirm the same transparency issue? Any idea where it is coming from?
Installed vbox packages:
linux54-virtualbox-host-modules 6.1.12-10 linux57-virtualbox-host-modules 6.1.12-10 linux58-virtualbox-host-modules 6.1.12-8 virtualbox 6.1.12-3 virtualbox-guest-iso 6.1.12-1 virtualbox-sdk 6.1.12-3