From: mrscreen AT hotmail DOT com (Heliophobe) Newsgroups: comp.os.msdos.djgpp Subject: Re: more problems settings the correct mode Date: Thu, 25 Mar 1999 00:57:53 -0800 Organization: SOL Lines: 37 Message-ID: References: <36F8F860 DOT 5E2F109F AT iocc DOT com> <36F9B4AD DOT A5FE0B52 AT iocc DOT com> NNTP-Posting-Host: 206.55.224.114 NNTP-Posting-Date: Thu, 25 Mar 1999 08:58:24 GMT X-Trace: 922352304.826.51 6BUII4S.ME072CE37C usenet1.supernews.com X-Complaints-To: newsabuse AT remarQ DOT com X-Newsreader: MT-NewsWatcher 2.3.5 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com In article <36F9B4AD DOT A5FE0B52 AT iocc DOT com>, vern wrote: Okay, two questions: Do all the allegro programs that the makefile installed run? In particular, have you tried demo.exe (the shooting game) with a 640x480 mode? If so, what happens? Also, did you use allegro_init() before trying to set the graphics mode? (that's all I could think of right now) actually, one more thing just occured to me... try the allegro demo, or any other allegro program that lets you select your graphics mode before running, play around with the different kinds of modes, instead of just resolutions (i.e. instead of just autodetect, try vesa 1.0, 2.0 linear, 2.0 banked, etc) and make a note of what works, what the program says is unavailable, and what causes a lockup. I was having a similar problem with a cheap celeron machine I had been borrowing, which had a faulty vesa driver that locked up the machine when I tried to set certain modes. My immediate fix was to stop using GFX_AUTODETECT and pick vesa 1.0 (I think). Later I got the idea to track down my video card manufacturer and download the latest version of the dos drivers. These days PC makers often don't make the vaguest efforts to support DOS applications... The celeron I was using (NexStar) didn't come with dos drivers for my sound card or video card, even though they were available from the cards' manufacturer's websites. It also didn't come with a mouse.com, and I can't say how much I hate that. So you may want to see if there's a newer driver available from your video card manufacturer, especially if you've had graphical glitches and lockups from other DOS applications (especially djgpp/allegro ones, like MAME)