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Using VirtualBox 6.0. Host Windows 10 Pro, VM: Linux Ubuntu 64 18.04.2. I’m quite a beginner with Linux and haven’t used Virtual Box for years.

I was initially trying to set the resolution for my VM, but got into even worst problems. So, trying to solve one at a time…

I first launched the VM with Ubuntu .iso as virtual drive, installed Ubuntu. Ejected Ubuntu installation virtual disc. Then I inserted the Guest Additions virtual CD ( Devices > Insert Guest Additions CD image … ) Linux told me that this CD has executable content, I told it to run it. All I get then is a black screen.

After a long time, I tried ACPI shutdown and re-started the machine.

I see a Ubuntu loading screen (“Ubuntu” title with 4 dotes below it) then after a short time, a black screen. (Doesn’t seem perfectly black though, it looks like the black with a tiny bit of red used in some Ubuntu screens).

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I had this same exact issue. I solved it by shutting down, going to my virtual machine settings and selecting display. I changed the graphics controller to VBoxVGA, yours might be different, just interchange the available options. I hope this helps

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  • This turned out not to be the best solution, I ended up creating a new VM – Muganwas Jul 15 '19 at 11:30
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I am running VirtualBox 6.0.14 on host Ubuntu 18.04.2 (Dell laptop). My Debian 9 VM was starting with a completely black, blank screen.

For me, the issue was resolved by changing to:

Display → Graphics Controller → VBoxSVGA

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My display was already set to VBoxSVGA. I got the solution from Ubuntu 18.04 LTS on Virtualbox boots up, but black login screen which was to change the Video Memory from 16MB to 64MB.

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I am running VirtualBox 5.2.6 on a Mac OS host. I had to change the number of processors to 2 (Settings->System->Processor) to get the login screen to show up. The default appears to be 1 processor (at least for this version of VirtualBox).

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I had to disable 3d acceleration underneath the graphics controller selection menu, which I have to set to VMSVGA or I get an error message.

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