Just jumping off the back of this thread. I tried to use the suggested solution to fix a distorted version of the Antergos grub theme to no avail. It is still distorted.
Is there anything else I can do to try and fix this? When I say distorted, I mean that the list of distributions is there with Antergos as default, but it is very big and pixellated and sitting in the bottom right corner of my screen almost off to the right. It just looks a mess.
Any help appreciated.