Arch Linux

joaocandre

Member

Registered: 2013-02-23

Posts: 166

[SOLVED] Blank screen when booting up QEMU/KVM virtual guest system

I've setup an Ubuntu guest using QEMU/KVM, though Gnome Boxes.
Installation and setup went without a hassled, however, after a reboot I'm no longer able to boot into the machine, the virtual machine seems to be running, but I only get a black empty display, without any error
I'm not well-versed into this sort of virtualization, I usually use Gnome Boxes because it makes it very straightforward to setup QEMU/KVM and libvirt, and Virt-manager to edit machine details if when/needed.

How do I check what, if any, errors that may be logged?

Last edited by joaocandre (2025-01-07 00:42:25)

joaocandre

Member

Registered: 2013-02-23

Posts: 166

Re: [SOLVED] Blank screen when booting up QEMU/KVM virtual guest system

I've found the root issue to be the nvidia proprietary drivers on the host system, which are known to cause issues with virtio-gpu.
I managed to get it working following these hints, but performance wasn't great, and ended up using QXL.