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Possible Duplicate:
Enabling Nvidia driver messes up splash screen

How I can change the boot screen resolution in Ubuntu 12.04 to 1680 1050? The resolution now is very small

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marked as duplicate by Jorge Castro, hexafraction, Eliah Kagan, Scott Severance, Mik Sep 28 '12 at 10:16

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

askubuntu.com/questions/6033/… –  Anake Apr 29 '12 at 16:09
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1 Answer 1

Try this:

  1. We will have to edit grub configuration. Open a terminal and paste this:

    sudo gedit /etc/default/grub
    Hit Enter. It will open grub preferences in Gedit.

  2. Locate the line "# GRUB_GFXMODE=800x600" (resolution may be different).

You have to change the resolution to actual resolution of your screen, for example mine is 1240x1024. Next step is to uncomment this line (remove the # and and the empty space if is, so the letter G of the word GRUB will be the first letter in this line). After u r done, save the file and close.

3 . Now paste this line in terminal:

sudo gedit /etc/grub.d/00_header .

Hit Enter. It will open a text file with a lot of stuff. Use the search option at the top of the window to locate this line:


After u successfully find it, u will have to add this line: "set gfxpayload=keep" (of course without the " sign) just under the gfxmode=${GRUB_GFXMODE}. Make it look like this:

set gfxmode=${GRUB_GFXMODE}
set gfxpayload=keep

Now, save the file and close.

4 . In terminal paste:

sudo update-grub 

Hit enter, it will generate new grub.cfg file so the changes u made will be saved.

Reboot and enjoy your new boot screen resolution.

In case u don't know what is your screen resolution

Go to System settings - Displays

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