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I've created a minimal Linux system which boots to the console and does not contain any kind of graphical environment.

I now want to display an image file from my C program or a bash script on the screen.

How can I do this?

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  • have you gone through LFS , BLFS projects? Commented Sep 2, 2016 at 11:17
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    If your system has a framebuffer device, there's the fbv utility for JPEG, GIF and PNG images. See free-electrons.com/blog/super-fast-linux-splashscreen Commented Sep 3, 2016 at 9:05
  • Thanks a lot! The /dev/fb0 works really well. Commented Sep 3, 2016 at 10:27

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If your system has a framebuffer device, i.e. /dev/fb0, then there's the fbv framebuffer viewer utility for JPEG, GIF, PNG, and BMP images. (It's available as a target package in Buildroot.)
And if you have a suitable raw image (e.g. a framebuffer capture), then that file can be written directly to the framebuffer device.
See Super fast Linux splashscreen for more details.

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There are a few options.

  • If you have no “graphics” hardware, per se, you can use something like libaa or libcaca to convert an image into “ASCII ART.”
  • If you have PC-type VGA-type hardware available (at least), you can use something like svgalib to write to the hardware, eg, using zgv
  • If your device has a video framebuffer, you can write directly to the framebuffer device, as well.
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