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I currently use Ubuntu on my macbook pro with grub. My macbook has a retina display with 2560x1600 resolution. The grub startup screen font is so tiny that it is barely readable.

How can I make grub appear in an eye-friendly way with this setup? Just passing on a gfx mode like GRUB_GFXMODE=640x480 does not have any effect?

Thanks for a solution.

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    after edit GRUB_GFXMODE , you have to type: sudo update-grub then reboot your system askubuntu.com/questions/54067/…
    – Muhammad Z
    Commented Feb 10, 2015 at 21:59
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    I did update grub (even if I did not explicitely mention it). The problem is that the configuration has no effect. It looks like grub can only deal with the native resolution or at least I have not figured out how to make it work with a different resolution.
    – binaryanomaly
    Commented Feb 10, 2015 at 22:16

1 Answer 1

Reset to default
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Since there seems no way to use a different resolution with this hardware, the solution is to increase the font size as described here: Can GRUB font size be customised?

Which works perfectly.

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    I found that changing GRUB_GFXMODE as per this answer worked fine for me so I didn't need to change the grub font. I did change the TTY console font to make it readable during boot using sudo dpkg-reconfigure console-setup and selecting terminus 16x32 for the font. (Ubuntu 18.04, Dell XPS 15, 4k)
    – robocat
    Commented Dec 6, 2018 at 4:24

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