When running a clean install of Ubuntu 17.04 on a fresh Dell XPS 9360 (3200x1800 display) I was soon shown the following screen after the initial boot:
Basically, the displayed image is corrupt and incomprehensible. What can I do to fix this?
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3 Answers
On my macOS host, increasing the amount of processors allocated to the VM from 1 -> 4 fixed this issue for me. My guest was Lubuntu 18.04.
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1This was the only solution that worked for me, even though VirtualBox complains with "invalid settings detected" (since the host only has 2 CPUs). Commented Aug 27, 2018 at 21:07
Basically, the allotted default amount of VRAM (video ram) in Virtualbox is not sufficient for the high-resolution display. Simply try increasing it. By increasing it from the default (19MB?) to 128MB the problem went away.
This might also be related to the Unity desktop environment, which according to the specs requires a video card of at least 256 MB, a requirement most integrated solutions will fail. In that case, try another desktop environment, such as XFCE (XUbuntu) which does not have a 3D rendered desktop by default.
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I had mine at 64MB for Ubuntu Mate, which worked fine in 17.10, but needed 128MB for 18.04. Commented Apr 6, 2018 at 20:35
While trying to install an old version of ubuntu (10.04) on my Ubuntu 19.04 (beta) on Lenovo X1 carbon - I had this issue.
I changed the "Graphics Controller" in machine settings to VBOXVGA and it fixed the issue.
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1Can you add a little context about your system so readers can assess how this might apply to them? Thanks. Commented Apr 3, 2019 at 13:51
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