{"id":33857,"date":"2021-05-29T17:13:43","date_gmt":"2021-05-29T17:13:43","guid":{"rendered":"https:\/\/ubuntuhandbook.org\/?p=33857"},"modified":"2021-05-29T17:13:43","modified_gmt":"2021-05-29T17:13:43","slug":"screen-resolution-grub-boot-menu-ubuntu","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2021\/05\/screen-resolution-grub-boot-menu-ubuntu\/","title":{"rendered":"How to Change Screen Resolution of Grub Boot Menu in Ubuntu"},"content":{"rendered":"

\"\"<\/p>\n

The font size of startup boot menu is too small or too large? It’s easy to fix by setting an appropriate screen resolution for the Grub boot-menu in Ubuntu.<\/p>\n

1.) Tell which video modes your graphics card support.<\/b><\/p>\n

Before starting to configure the Grub bootloader, you firstly need to know which video modes are supported. <\/p>\n

a.) The hwinfo<\/code> command has an option to display the information. It however show me nothing. You can try it by opening terminal<\/i> (Ctrl+Alt+T) and run command:<\/p>\n

sudo apt install hwinfo && hwinfo --framebuffer<\/pre>\n
b.) If howinfo<\/code> does not work, use videoinfo<\/code> instead which however runs in Grub command console.<\/p>\n
Firstly restart your machine. When you’re at Grub boot-menu, press c<\/b> to get into command console.<\/p>\n
Next run command videoinfo<\/b> to list supported video modes.<\/p>\n
\"\"<\/a><\/p>\n
Take a picture of the output, or write down your desired resolution, e.g., 1024x768x32 and 1280x1024x32.<\/p>\n
Finally run exit<\/b> to get back boot menu.<\/p>\n
2.) Set a custom screen resolution for Grub boot menu:<\/b><\/p>\n
Now boot into Ubuntu, open terminal from system app launcher, and run command to edit the Grub configuration file:<\/p>\n
sudo gedit \/etc\/default\/grub<\/pre>\n
Next set a screen resolution by changing value of “GRUB_GFXMODE”. For instance, set 1024x768x32<\/b> (32 means 32-bit color<\/i>) via:<\/p>\n
GRUB_GFXMODE=1024x768x32,auto<\/pre>\n
Multiple resolutions can be specified, the default is auto<\/code>.<\/i><\/p>\n
\"\"<\/a><\/p>\n
Without running command<\/b>, you can also set it via Grub Customizer<\/b> under its ‘Appearance settings’ page.<\/p>\n
\"\"<\/a><\/p>\n
3.) Update grub to apply change:<\/b><\/p>\n
If changed the solution via Grub Customizer, simply click on “Save” button. Or, open terminal and run command to update grub:<\/p>\n
sudo update-grub<\/pre>\n
\"\"<\/a><\/p>\n
That’s all. Enjoy!<\/p>","protected":false},"excerpt":{"rendered":"
The font size of startup boot menu is too small or too large? It’s easy to fix by setting an appropriate screen resolution for the Grub boot-menu in Ubuntu. 1.) Tell which video modes your graphics card support. Before starting to configure the Grub bootloader, you firstly need to know which video modes are supported. […]<\/p>\n","protected":false},"author":1,"featured_media":32671,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[2034],"class_list":["post-33857","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-howtos","tag-grub"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/33857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/comments?post=33857"}],"version-history":[{"count":0,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/33857\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/media\/32671"}],"wp:attachment":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/media?parent=33857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/categories?post=33857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/tags?post=33857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}