Screen resolution

[dejancrn]

I have installed Debian 9 in Windows Host without GUI. Since console size was small i successfully changed resolution to 1024x768 via GRUB_GFXMODE and GRUB_GFXPAYLOAD in /etc/default/grub. However, if i install Virtual Box Guest Additions, it does not work anymore. As soon as i selected boot option from GRUB menu it starts to boot and during the boot process it changes resolution to some smaller resolution. If i uninstall guest additions it keeps the resolution from GRUB menu.

Any ideas?

[Perryg]

Without Xorg the auto-resize and/or increased screen resolution provided with the guest additions will not change. You must change console mode using framebuffers.

[Perryg]

One other thing. The Guest Additions may interfere with the GFX_MODE because it requires X and to work around that you need to black list vboxvideo.

[dejancrn]

Blacklisting vboxvideo did the trick. Thank you for your help.

[socratis]

For the uninitiated of us, would blacklisting mean something like this?
https://wiki.debian.org/KernelModuleBlacklisting

[Perryg]

Exactly!