Re: ISO-8859-1 completeness of kernel fonts?

From: Mack Stevenson (mackstevenson@hotmail.com)
Date: Tue Feb 27 2001 - 08:41:24 EST


Hello,

Thank you for your reply.

> >
> > The 8x16 and Sun 12x22 kernel fonts I tried seem to lack some standard
> > glyphs necessary to represent the entire ISO-8859-1 charmap; I am
>talking
> > about all accented capital vowels except for ''.
> >
> > This seems to happen in both 2.2.16 as well as in 2.2.18.
> >
> > Is this intentional? If so, why?
> >
> > How can I override this behaviour?
> >
>
>They're probably CP 437 fonts. Just load your own; e.g. "setfont
>lat1u-16".
>

I know that, but unfortunately all the fonts I found for use with the kbd
and console-tools packages are much smaller than 12x22, making them hardly
legible (to me) on high dpi screens: that's why I even tried the ones in the
kernel. :-)

[Is there any easy way for you to create larger console fonts out of the
8x16 Latin* ones you already wrote?]

"setfont -h22 [font]" doesn't work, too.

Anyway, I have already pinned down the source file (in 2.2.18) -
drivers/video/font_sun12x22.c - and would like to try to change this. Yet it
seems like the kernel boots using the CP437 charmap, so this would need to
be modified, too - I suppose that the relevant file is
drivers/char/consolemap.c.

- How can I instruct the kernel to use the ISO-8859-1 character map?
drivers/char/consolemap.c contains three different translation tables -
CP437, ISO-8859-1 and VT100 mapped to Unicode -; how can I choose one of
them?

- Or shouldn't I even bother about this since in the ASCII range CP437 and
ISO-8859-1 map to the same characters? May I just boot the kernel using an
unmatched pair of (CP437) charmap and (ISO-8859-1) font, feeling at ease
because the kernel won't try to print any non-ASCII characters, and only
later, in userspace, call loadunimap?

Am I understanding this correctly?

Thank you,

Mack
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