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How to display a full resolution Linux boot logo

When trying to use your own Linux boot logo (instead of Tux penguin splash) according to Digi ESP instructions 9.14.2.1 to change logo_custom_clut224.ppm, you will notice that higher resolution logos will not be displayed.

In order allow higher or full resolution Linux boot logos, please patch
/usr/local/DigiEL-5.8/ 
 #ifdef CONFIG_LOGO
- fb_prepare_logo(fbi, 0);
- fb_show_logo(fbi, 0);
+ if (pdev->id != 2) { // Ignore for the overlay
+  fb_prepare_logo(fbi, 0);
+  fb_show_logo(fbi, 0);
+ }
 #endif
 
  return 0;

The patch only applies to Digi Embedded Linux 5.8 or 5.9.
Last updated: Jun 06, 2019

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