Linux Fullscreen Guest display broken
|Reported by:||Feline||Owned by:||gombara|
|Component:||guest additions/x11/graphics||Version:||VirtualBox 6.1.10|
|Keywords:||Linux guest fullscreen||Cc:|
|Guest type:||Linux||Host type:||Linux|
At VirtualBox 6.1.4, the login screen shows fullscreen and once logged in, the desktop is set to fullscreen - in my case 1280 x 1024.
Since VirtualBox 6.1.6 all my Debian 10 guests that run fullscreen have had their display go blank once you've logged in.
The same problem still exists with VirtualBox 6.1.10. The login screen is reduced to 800 x 600 and once logged in, the guests screen goes blank. If you use the View -> Set Fullscreen (or Host+F key), the guests screen reappears as windowed. Do this again and the guests display is fullscreen again. However, rebooting the guest results in the same blank screen again.
Attached are two VBoxLogs, one from 6.1.10 which is taken at the point the guests screen has gone blank and the other when using the GA's from 6.1.4, when everything works as it should.
The Host is running Debian 10 with the Mate desktop. The affected guest(s) are also running Debian 10 with the Mate desktop.