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From: jb <jb.1234abcd@gmail.com>
Subject: Re: Reading the handbook from console
Date: Mon, 14 Jan 2013 06:06:07 +0000 (UTC)
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References: <20130113214801.3ce70c97.freebsd@edvax.de>
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Robert Bonomi <bonomi <at> mail.r-bonomi.com> writes:

> ... 
> > The is a famous library, svgalib, a "low level console graphics
> > library" which can - under _very_ specific circumstances - display
> > graphics "on" the text mode console. There are few browsers,
> > image viewers and even media players that can use this interface
> > to display "console graphics" while _not_ needing X.
> ... 
> Works fine on FreeBSD  -- graphics-mode screen-savers (like 'fire')
> use it.
...

Yes, it is famous indeed ...
Is that still valid ?

www.svgalib.org/svgalib.user.faq.html
...
Why does a programs terminate immediatelly with "svgalib: Cannot get I/O
permissions."?

svgalib programs need to be run as root. This means that either the user that
runs them is root, or, if running by normal users is desirable, the program
needs to be 'suid root', which means: the program must be owned by root (chown 0
program) and the suid bit needs to be set (chmod u+s program).
...

jb