[syslinux] Other video modes besides 640x480

[Loïc Grenié]

2008/7/22 H. Peter Anvin <hpa at zytor.com>:
> Loïc Grenié wrote:
>>      I've written the code to switch to the largest available video mode.
>>   As is, it is probably not very useful (because the font is probably
>>   barely legible on a 150dpi display and because I've not modified the
>>   background loading code).
>>
>>      Would it be interesting to develop it further or would it be considered
>>   overbloat ?
>
> I have gotten a couple of requests for this; it does complicate the code

      My code for just mode switching and background loading is not
   complicated (attached below, I hope it did not get space-damaged).
   Syslinux code is really clean and very easy to work with. Nearly
   everything is already ready for arbitrary mode size. I suppose
   I've forgotten quite a lot of possible problems (besides those
   you list below)...

> and (and this is realistically speaking much worse) you risk driving
> the monitor in a mode it doesn't have,

     I suppose most BIOSes won't remove from the list of available modes
   those that the monitor can't display. Correct ?

> especially if the BIOS doesn't
> provide EDID information (some BIOSes don't, but it does mean relying on
> more.)

> I would like to see a strong use case for this before putting it in, but
> I'm not ruling it out, either.

     For this kind of problem, the strongest I can think of is: "it's
   much nicer that way" ! I experimented with the "crocusses.png" of
   krita and they are cool (needed a slight cut to work with tinyjpeg).

       Loïc Grenié
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