Do the following to change the console resolution:

1. Determine available resolutions

To do this, at the GRUB menu, press ‘c’

At the GRUB prompt type:

grub> set pager=1
grub> videoinfo

Take note of the desired resolution and reboot the system (or type ‘normal’ at the GRUB prompt)

NOTE: if ‘videoinfo’ GRUB command doesn’t work, then try ‘vbeinfo’

2. Configure GRUB to set the desired resolution

Add/edit the following lines in ‘/etc/default/grub’:

GRUB_GFXMODE=<resolution>
GRUB_GFXPAYLOAD_LINUX=keep

where <resolution> is the desired resolution, for example: 1600×1200

3. Apply GRUB configuration

Execute the following command:

$ sudo update-grub
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