DOS ain't dead - working in more than 1280*1024 under Dos

working in more than 1280*1024 under Dos (Developers)

posted by Damien, 26.04.2013, 17:06

Thank you all for your answers,

I 've learned a few things about EDID stuff :).

But I want to come back to my first question : which VGA should I get to have best chances ?

Let's say I want to use 1680*1050 resolution in my DJGPP / Allegro program.
From what I've read, I can sum up the steps as follows:
1) Get a screen with (native) 1680*1050 resolution
2) Test on it an EDID-tool to check that a program can retrieve good information, especially the 1680*1050 resolution
3) Get/buy a VGA card that supports 1680*1050 res in "pseudo vesa" or "dos" mode => which one ? Nvidia ? ATI? (PCI-E is better for me) Is there a list somewhere?
4) Use a "smart enough" tool such as VESATEST to see if we can really manage 1680*1050 display
5) If everything is fine, try to make my application work in this resolution.

Hope it's the right way!

Damien

> > I tried both utils at home but without success :(, VGA is NVidia
> GF9700GT.
> > ...
> > http://rayer.g6.cz/1tmp/edid/GET-EDID.TXT
>
> Yeh, the Read-EDID web pages are a bit confusing.
>
> "The *new* homepage of Read-EDID" webpage (pyrophobicman):
>
> http://www.polypux.org/projects/read-edid/
>
> contains *old* DOS binary v1.3.5 (2000) and *newer* source v1.4.2 and
> v2.0.0 (both 2008) -- but no .exe's of the newer versions. (Says the old
> DOS binary was compiled with DJGPP, so i'm assuming the newer sources could
> also be compiled for DOS).
>
> "Old version of Read-EDID" webpage (John Fremlin):
>
> http://john.fremlin.de/programs/linux/read-edid/old.html
>
> says (old) GET-EDID will not work with bigger EDID data structures (> 128
> bytes), which i'm assuming newer monitors will likely have. It also says
> that (old) PARSE-EDID will fail with EDID v1.3 structures (yikes!). I'm
> assuming this was fixed in newer versions of the source (but i haven't
> examined them). Again, keep in mind that the DOS binary on the "new" page
> is actually the "old" version!
>
> I just tested (old) GET-EDID on a VBE 1.2 system, and as expected, it did
> not work (got the same infinite loop as RayeR did). It did work on my VBE
> 2.0 and older 3.0 systems, but not on my newer 3.0 system (same infinite
> looping).
>
> Unfortunately, i don't have DJGPP set up, so i can't compile the newer
> Read-EDID version sources to see if they work.
>
> - Doug B.

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Complete thread:

working in more than 1280*1024 under Dos - Damien, 22.04.2013, 21:17 (Developers)
- working in more than 1280*1024 under Dos - RayeR, 22.04.2013, 23:26
  - working in more than 1280*1024 under Dos - bretjohn, 23.04.2013, 17:47
    - working in more than 1280*1024 under Dos - RayeR, 23.04.2013, 22:25
      - working in more than 1280*1024 under Dos - bretjohn, 23.04.2013, 23:40
        working in more than 1280*1024 under Dos - Doug, 24.04.2013, 05:49
        working in more than 1280*1024 under Dos - RayeR, 24.04.2013, 12:43
        working in more than 1280*1024 under Dos - bretjohn, 24.04.2013, 18:32
        working in more than 1280*1024 under Dos - RayeR, 24.04.2013, 19:34
        working in more than 1280*1024 under Dos - bretjohn, 24.04.2013, 20:05
        working in more than 1280*1024 under Dos - RayeR, 25.04.2013, 10:41
        working in more than 1280*1024 under Dos - Doug, 26.04.2013, 05:05
        working in more than 1280*1024 under Dos - Damien, 26.04.2013, 17:06
        working in more than 1280*1024 under Dos - bretjohn, 26.04.2013, 18:34
        working in more than 1280*1024 under Dos - RayeR, 26.04.2013, 23:34
        working in more than 1280*1024 under Dos - Doug, 26.04.2013, 23:59
    - working in more than 1280*1024 under Dos - Zyzzle, 24.04.2013, 06:42
      - working in more than 1280*1024 under Dos - RayeR, 24.04.2013, 10:52
        working in more than 1280*1024 under Dos - Laaca, 25.04.2013, 07:33
      - working in more than 1280*1024 under Dos - bretjohn, 24.04.2013, 18:38
  - working in more than 1280*1024 under Dos - Damien, 01.05.2013, 17:47
    - working in more than 1280*1024 under Dos - RayeR, 02.05.2013, 17:17
      - working in more than 1280*1024 under Dos - Damien, 02.05.2013, 22:34
        working in more than 1280*1024 under Dos - RayeR, 06.05.2013, 20:00
        working in more than 1280*1024 under Dos - Damien, 07.05.2013, 18:56
    - working in more than 1280*1024 under Dos - tom, 02.05.2013, 18:12
      - working in more than 1280*1024 under Dos - Damien, 02.05.2013, 22:22
      - working in more than 1280*1024 under Dos - Zyzzle, 03.05.2013, 02:36
- working in LESS than 1280*1024 under Dos - DOS386, 28.04.2013, 15:26
  - working in LESS than 1280*1024 under Dos - Damien, 01.05.2013, 17:53
- working in more than 1280*1024 under Dos - freecrac, 28.08.2013, 06:27
  - working in more than 1280*1024 under Dos - freecrac, 28.08.2013, 06:29