Fullscreen with two monitors

[Pierre Rudloff]

When using two monitors, fullscreen DOS games like Daggerfall are spanned across the two monitors like if it was only one display which make it very hard to see anything.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: dosbox 0.74-3
ProcVersionSignature: Ubuntu 3.5.0-26.42-generic 3.5.7.6
Uname: Linux 3.5.0-26-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Wed Mar 20 01:19:08 2013
InstallationDate: Installed on 2013-02-27 (20 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
SourcePackage: dosbox
UpgradeStatus: No upgrade log present (probably fresh install)

[shankao (shankao)]

This is probably an SDL problem; dosbox uses SDL 1.2.

Can you try in your system other games/apps that use SDL to see if the problem is also there? Thanks!

[dreamer_ (dreamer-tan)]

A bit of necromancy on an old bug report, but in case someone else is seeing this:

Yes, this is an SDL issue, but DOSBox could instruct SDL to work correctly.

To *work around* it, you can use environment variable: SDL_VIDEO_FULLSCREEN_DISPLAY=<number> AND use dosbox settings: sdl.fullresolution=<resolution of the display you selected> (do not use value "desktop"!).

Or you can use steam-dos, which does it automatically: https://github.com/dreamer/steam-dos

[shankao (shankao)]

Interesting project; thanks for sharing dreamer_