Need to run DOS app in VGA mode

Discussions about using non Windows and Linux guests such as FreeBSD, DOS, OS/2, OpenBSD, etc.
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Mrbobb
Posts: 2
Joined: 9. Sep 2015, 06:08

Need to run DOS app in VGA mode

Post by Mrbobb »

I am going to say this is a VGA driver problem.

Have this legacy DOS app that runs fine on native Windows, I hit alt-ENTER and BAM, am on full-screen VGA resolution which the Apps needs.

Running under a Virtual-Windows box, it's always windowed and the displayable window never fills the whole screen, tinny font, and the mouse goes wild.

If you have a similar problem, lets talk.
mpack
Site Moderator
Posts: 39134
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Mostly XP

Re: Need to run DOS app in VGA mode

Post by mpack »

The virtual machine switches to a virtual VGA mode. The VM does not take over control of the host hardware!

I'm afraid that actual resolution is determined by the age of the selected guest OS. But, you can use scale mode if you want to make the window bigger.
Mrbobb
Posts: 2
Joined: 9. Sep 2015, 06:08

Re: Need to run DOS app in VGA mode

Post by Mrbobb »

Thanks, SCALE works better, now it fills up the screen. Next, fix the mouse, the pointer is not where it's suppose to be, any tweak to the mouse under VB?

TIA
mpack
Site Moderator
Posts: 39134
Joined: 4. Sep 2008, 17:09
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Mostly XP

Re: Need to run DOS app in VGA mode

Post by mpack »

"not where it's supposed to be" doesn't tell me much.

I'm not aware of any mouse tweaks for DOS guests, no.
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