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Table of Contents
KVM, Libvirt, QEMU quirks, tips, tricks etc
Introduction
This is meant as a collaborative place for minor topics related to KVM, Libvirt and QEMU that neither fits in another howto or need a howto of its own. Little things you pick up when using these that might be important to other users. Please add things chronologically with a headline(5). Use headline(3) if you need to split it into sections. Leave some empty spaces between each minor topic. The original author will organizer this article better if needed.
Increasing guest console/framebuffer resolution
Background
In some or most cases when you start the guest OS/VM OS, you will have a lesser resolution than your host OS or what your GPU display allows. To solve this issue AFTER the installation, you can do this with the bootloader. Since I use Grub mostly, this solution is Grub centric, but there should be similar solutions in other bootloaders.
Increasing VM console/framebuffer resolution with Grub2
When you start the VM and Grub2 menu shows, press ctrl+c to enter the console. Use these two lines to gather info about your resolution options.
grub> set pager=1 grub> vbeinfo
Note down a resolution you want to use. It would be a good idea to NOT choose the max resolution, but rather something close to the max resolution.
Edit your /etc/default/grub file
GRUB_CMDLINE_LINUX_DEFAULT="nomodeset" GRUB_GFXPAYLOAD_LINUX=1600x900
Then run grub-mkconfig -o /boot/grub/grub.cfg to make the change effective.
Another example here
example
example
Sources
* Originally started by zeebra
