Pointer turns into a black box when unlocking

Yes, Neofetch sucks. Glad it’s going away. Fastfetch is there… but unfortunately not in Noble. Sorry.

That said, I got the important information there: you’re clearly running what seems to be a fairly normal LXQt installation down to the fact that your default terminal seems to be QTerminal. In fact, just looking at the menu layout in the screenshot, that’s what you’re running, not LXTerminal as you thought earlier.

Additionally, you and i seem to be both be using the VMSVGA graphics controller in VirtualBox. So I should be having similar issues… unless it’s actually the host graphics that complicates things.

That said, three more questions:

  1. What’s the host graphics and what kernel modules are you using for it? sudo lshw -class display -numeric -sanitize should answer that with sufficient detail.
  2. Which specific version of VirtualBox are you using from where? This should answer the question quite specifically: apt-cache policy $(dpkg -l | grep '^ii.*VirtualBox$' | awk '{print $2}')
  3. What was the original installation? The file /var/log/installer/media-info should answer this question.
~$ sudo lshw -class display -short -numeric -sanitize
H/W path            Device      Class       Description
=======================================================
/0/100/2            /dev/fb0    display     SVGA II Adapter [15AD:405]
~$
~$ dpkg -l | grep -i virtualb
~$ 
~$ cat  /var/log/installer/media-info
Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)~$ 
~$
~$  apt-cache policy $(dpkg -l | grep '^ii.*VirtualBox$' | awk '{print $2}')
Package files:
 100 /var/lib/dpkg/status
     release a=now
 100 https://ubuntu.anexia.at/ubuntu noble-backports/universe i386 Packages
     release v=24.04,o=Ubuntu,a=noble-backports,n=noble,l=Ubuntu,c=universe,b=i386
     origin ubuntu.anexia.at
 100 https://ubuntu.anexia.at/ubuntu noble-backports/universe amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-backports,n=noble,l=Ubuntu,c=universe,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-security/multiverse i386 Packages
     release v=24.04,o=Ubuntu,a=noble-security,n=noble,l=Ubuntu,c=multiverse,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-security/multiverse amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-security,n=noble,l=Ubuntu,c=multiverse,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-security/universe i386 Packages
     release v=24.04,o=Ubuntu,a=noble-security,n=noble,l=Ubuntu,c=universe,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-security/universe amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-security,n=noble,l=Ubuntu,c=universe,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-security/restricted i386 Packages
     release v=24.04,o=Ubuntu,a=noble-security,n=noble,l=Ubuntu,c=restricted,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-security/restricted amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-security,n=noble,l=Ubuntu,c=restricted,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-security/main i386 Packages
     release v=24.04,o=Ubuntu,a=noble-security,n=noble,l=Ubuntu,c=main,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-security/main amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-security,n=noble,l=Ubuntu,c=main,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-updates/multiverse i386 Packages
     release v=24.04,o=Ubuntu,a=noble-updates,n=noble,l=Ubuntu,c=multiverse,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-updates/multiverse amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-updates,n=noble,l=Ubuntu,c=multiverse,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-updates/universe i386 Packages
     release v=24.04,o=Ubuntu,a=noble-updates,n=noble,l=Ubuntu,c=universe,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-updates/universe amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-updates,n=noble,l=Ubuntu,c=universe,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-updates/restricted i386 Packages
     release v=24.04,o=Ubuntu,a=noble-updates,n=noble,l=Ubuntu,c=restricted,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-updates/restricted amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-updates,n=noble,l=Ubuntu,c=restricted,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-updates/main i386 Packages
     release v=24.04,o=Ubuntu,a=noble-updates,n=noble,l=Ubuntu,c=main,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble-updates/main amd64 Packages
     release v=24.04,o=Ubuntu,a=noble-updates,n=noble,l=Ubuntu,c=main,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble/multiverse i386 Packages
     release v=24.04,o=Ubuntu,a=noble,n=noble,l=Ubuntu,c=multiverse,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble/multiverse amd64 Packages
     release v=24.04,o=Ubuntu,a=noble,n=noble,l=Ubuntu,c=multiverse,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble/universe i386 Packages
     release v=24.04,o=Ubuntu,a=noble,n=noble,l=Ubuntu,c=universe,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble/universe amd64 Packages
     release v=24.04,o=Ubuntu,a=noble,n=noble,l=Ubuntu,c=universe,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble/restricted i386 Packages
     release v=24.04,o=Ubuntu,a=noble,n=noble,l=Ubuntu,c=restricted,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble/restricted amd64 Packages
     release v=24.04,o=Ubuntu,a=noble,n=noble,l=Ubuntu,c=restricted,b=amd64
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble/main i386 Packages
     release v=24.04,o=Ubuntu,a=noble,n=noble,l=Ubuntu,c=main,b=i386
     origin ubuntu.anexia.at
 500 https://ubuntu.anexia.at/ubuntu noble/main amd64 Packages
     release v=24.04,o=Ubuntu,a=noble,n=noble,l=Ubuntu,c=main,b=amd64
     origin ubuntu.anexia.at
Pinned packages:

no idea why nothing matches virtualb in the dpkg output.

The current VirtualBox version, the last that runs on my system, I’ve downloaded from here

https://download.virtualbox.org/virtualbox/7.0.22/

https://download.virtualbox.org/virtualbox/7.0.22/VirtualBox-7.0.22-165102-Win.exe

I see now that there’s VirtualBox 7.0.24 since January 21 2025, I’ve missed that, I’ll try to install it now.

Now that was a major error. The installation of 7.0.24 failed, and I can’t install 7.0.22 back.

I think you should close the issue, it’s probably impossible to support the setup when VirtualBox behaves as it behaves.

Yes and I take it you’re on a Windows host machine, too. Best to check with the VirtualBox folks.