> Am 19.06.2025 um 22:19 schrieb tsiegel--- via Freedos-user 
> <freedos-user@lists.sourceforge.net>:
> 
> Does changing to 40 columns just use half the screen, or does it make the 
> font larger to accommodate?

It makes the font larger (like „double“)


> If the latter, it might be a way to make the font larger.

That I would have expected, but didn’t yet find a way how. 

> Only ever used 40 columns on apple II/E computers that only had 40 colomn 
> screens, never used it in dos where 80 column modes were available.
> 
> 
> On 6/19/2025 5:31 PM, Jerome Shidel via Freedos-user wrote:
>> 
>> 
>>> On Jun 19, 2025, at 1:03 PM, Eric Auer via Freedos-user 
>>> <freedos-user@lists.sourceforge.net> wrote:
>>> 
>>> 
>>> Hi!
>>> 
>>>> How can I make the system font bigger?
>>>> (e.g. setting the display to 20 lines instead of 25)
>>>> I am using cga.
>>> 
>>> Hmm. CGA. Not even EGA or VGA. In VGA, you would get:
>>> 
>>> C:\>mode con lines=42
>>> Lines must be 25, 28, 43 or 50, or font size 8, 14 or 16.
>>> If you have VESA, 30, 34 or 60 lines can be available, too.
>>> 
>>> Given that CGA has 320x200 and 640x200 modes, you could
>>> try to load some 8x14 or 8x16 font, but that would mean
>>> only 12 or 14 lines.
>>> 
>>> In addition, the CGA BIOS does not contain fonts larger
>>> than 8x8, so you would have to use the DOS DISPLAY driver
>>> to load the larger fonts. However, that driver probably
>>> ALSO will assume that you only want 8x8 fonts and fail
>>> to load the larger fonts.
>>> 
>>> According to wikipedia, CGA only supports ROM fonts.
>>> I guess it just does not have enough graphics RAM.
>>> 
>>> You could only switch to a slow graphics mode and let
>>> the BIOS render the text in software. Should work for
>>> software which does not directly access text screen
>>> buffer memory and only uses DOS or BIOS to show text.
>>> 
>>> Regards, Eric
>> 
>> As Eric said, I am fairly sure it is not really possible with CGA. 
>> 
>> However, on VGA there are tricks...
>> 
>> You can load a font that has variety of lines for vertical height. 
>> From around 8 to around 30. It depends on hardware. I think
>> 26 was about the maximum reliable height. 
>> 
>> Loading such a font does affect the total number of lines on
>> the screen. 
>> 
>> To demonstrate, run PGME, go to the Eternal Menu and
>> execute the Eternal Doc (BigText). It will temporarily load a 
>> larger font in text mode resulting in (I think) 80x15 text mode.
>> 
>> However, you would still be in the default video mode and many 
>> programs will not check and assume it is 80x25. So, I would not 
>> recommend permanently installing a taller font for general usage.
>> 
>> That being said, the VGA font has a lot of padding. Many years 
>> ago, I created a font and TSR to provide bigger text without
>> Increasing the font size. 
>> 
>> It won’t help you because it requires VGA. But, if anyone else
>> wants to give it a try, you can download it from GitLab at
>> 
>> https://github.com/shidel/DustyTP7/blob/master/bin/LARGE.COM
>> 
>> Interestingly, it won’t effect the font under any of the DOSBoxs. 
>> But, works fine on real hardware and the VMs I have tested.
>> 
>> :-)
>> 
>>> 
>>> 
>>> 
>>> 
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