From: triquet AT fil DOT univ-lille1 DOT fr (triquet frederic)
Newsgroups: comp.os.msdos.djgpp
Subject: [ALLEGRO] back to text mode problem
Date: 14 Feb 1997 09:24:58 GMT
Organization: Formations Informatiques Lille - F.I.L. - Bāt. M5
Lines: 36
Distribution: world
Message-ID: <5e1b1a$mp@netserver.univ-lille1.fr>
References: <3fr+QVAauhAzEwiS AT talula DOT demon DOT co DOT uk>
Reply-To: triquet AT fil DOT univ-lille1 DOT fr
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp


+->>Hi, yesterday I got Allegro 2.2 beta and tryed the new examples (from 21 or 22
+->>They work perfectly but when I come back to DOS ( from graphic to text mode )
+->>it bugs ( the DOS font is corrupted ) and i have to reset my computer.
+->
+->Does this happen with any other Allegro programs, or just these
+->examples? It would help a lot if you could tell me exactly which
+->programs work and which cause the corruption. Also, is the trouble
+->restricted to Allegro 2.2, or did anything like this happen with earlier
+->versions?
+->

Hi,
I tried Allegro 2.2 beta, and I found when the bug exactly happens ( I think so ):
when the program sets the resolution by using GFX_AUTODETECT it sometimes bugs,
I mean it bugs when you switch to 640x400 or higher, and it doesn't in any other
case. I found this by trying with ex22.exe which allows to select the gfx mode.

I also tried to modify an existing bugging example: GFX_AUTODETECT => GFX_VESA2B
( for example ) and it perfectly works.

All this doesn't happen with the previous version of Allegro.


PS: As I will be away for a long time, I won't be able to read the news ( for 2
    weeks ) and when I'm back the answers will probably be lost by my newsreader,
    so it would be kind to send me you answers by mail too. Thanks.

	(   triquet AT fil DOT univ-lille1 DOT fr   )

--
				Fred.
Frederic Triquet
E-Mail: triquet AT fil DOT univ-lille1 DOT fr