In Virtual Box 6.0.8 (on Ubuntu 18.04 host), I'm running an Ubuntu 18.04 live CD image as guest (so, not installed).
So, I tried to run
gnome-control-center, because I want to try to disable mouse integration (as per this SuperUser answer; Guest Additions have been installed); but if I run:
ubuntu@ubuntu:~$ gnome-control-center OpenGL Warning: Failed to connect to host. Make sure 3D acceleration is enabled for this VM.
User that issues startx, should be part of group: vboxguest
ubuntu@ubuntu:~$ sudo usermod -a -G vboxguest ubuntu usermod: group 'vboxguest' does not exist ubuntu@ubuntu:~$ sudo groupadd vboxguest ubuntu@ubuntu:~$ sudo usermod -a -G vboxguest ubuntu ubuntu@ubuntu:~$ gnome-control-center (gnome-control-center:10127): dbind-WARNING **: 20:37:38.574: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. OpenGL Warning: Failed to connect to host. Make sure 3D acceleration is enabled for this VM.
Right, but if I run as sudo, this warning appears:
ubuntu@ubuntu:~$ sudo gnome-control-center OpenGL Warning: crPixelCopy3D: simply crMemcpy'ing from srcPtr to dstPtr
... and a window gets raised, however it's empty:
Any ideas how I could properly start
gnome-control-center in this case (liveCD image as VirtualBox guest)?