Can GRUB2 be scaled? If so, how?

[rokejulianlockhart (Mr. Beedell, Roke Julian Lockhart)]

Rationale

As the undermentioned quotation demonstrates, I’ve ascertained how to force GRUB2 to render at the correct resolution for my monitor:

@rokejulianlockhart

GRUB_GFXMODE=, despite being unset, defaults to approximately 640x480 px. However, adding GRUB_GFXMODE=2560x1440 forces it to render at my monitor’s native resolution (obviously, 2560x1440 px). You may need to add GRUB_TERMINAL_OUTPUT="gfxterm" too.

However, because it’s scaled at 100%, it’s quite small. Consequently, I want to scale it. Whether solely integer scaling or fractional scaling is available in addition is insignificant to me, because 200% is acceptable.

Duplicates

1. A Reddit post also asks this, to no avail.
2. I’ve asked unix.stackexchange.com/q/787374/386242.

[computersavvy (Jeff V)]

Since this is grub and the display will be reset once the DE loads, why not use GRUB_GFXMODE=1280x720 which would be approx 200% scaling from the default.

Once the graphical desktop loads the default resolution should be reconfigured for normal use.

[rokejulianlockhart (Mr. Beedell, Roke Julian Lockhart)]

@computersavvy, because that’s incredibly low resolution, so the font can’t display properly. I want to do this properly.

It is 1080p by default on this machine, despite being the full resolution on my laptop by default.