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The OMAP4 images on this site will automatically set the display resolution to match your monitor.

Unfortunately this capability isn't yet available for the OMAP3 images.  The simplest method to customize the display resolution is to set it using an environment variable in u-boot.

Fortunately this is a fairly simple process:

1. Press any key during the boot sequence when u-boot prints the following message:

Hit any key to stop autoboot:

2. Choose one of the following resolutions that are known to work:

• 640x480MR-16@60 (use this one for the Pico Projector)
• 800x600MR-16@60
• 1024x768MR-16@60
• 1280x800MR-16@60
• 1280x1024MR-16@60
• 1440x900MR-16@60
• 1680x1050MR-16@60
• hd720

3. Set the dvimode environment variable to your desired resolution, save the setting, and start the boot process:

# setenv dvimode 1280x1024MR-16@60
# saveenv
Saving Environment to NAND...
Erasing Nand...
Erasing at 0x240000 -- 100% complete.
Writing to Nand... done
# reset

If you want 32 bpp, you can substitute 32 for 16 in the above settings.

For systems with no NAND (like some versions of the Beagle xM) skip the saveenv step since it will not be possible to save the changed setting.  You will need to perform this step each time you reboot, or the resolution will switch back to the default 1024x768MR-16@60.  If you would like to automate this, you will need to create a boot.scr file containing the above commands on the FAT boot partition of your SD card (instructions coming soon).