Screen affinity for fullscreen on a dual screen setup under Linux \ VOGONS

Screen affinity for fullscreen on a dual screen setup under Linux

Topic actions

First post, by BastetFurry

Posted on 2017-12-22, 22:42

BastetFurry Offline

Rank Newbie

Rank: Newbie
Posts: 24
Joined: 2009-08-10, 22:28

Hey 😀

Having a two screen setup on my Linux box, how do i tell Dosbox to use the left screen when going fullscreen and not the right(wrong 😉 ) screen?

EDIT for those who don't want to dig trough the thread:

Put

1export SDL_VIDEO_FULLSCREEN_DISPLAY=0

into .bashrc, your number might differ.

Set your screen resolution in dosbox.conf:

1fullresolution=1920x1200

Last edited by BastetFurry on 2017-12-23, 10:04. Edited 1 time in total.

Reply 1 of 6, by Dominus

Posted on 2017-12-22, 23:22

Dominus Offline

Rank DOSBox Moderator

Rank: DOSBox Moderator
Posts: 9154
Joined: 2002-10-03, 09:54
Location: Ludwigsburg

I think you can’t. It’s an SDL problem

Windows 3.1x guide for DOSBox
60 seconds guide to DOSBox
DOSBox SVN snapshot for macOS (10.4-11.x ppc/intel 32/64bit) notarized for gatekeeper

Reply 2 of 6, by BastetFurry

Posted on 2017-12-23, 01:30

BastetFurry Offline

Rank Newbie

Rank: Newbie
Posts: 24
Joined: 2009-08-10, 22:28

Thats unfortunate, then i go and check if i can hack SDL to do my biddings.

Reply 3 of 6, by BastetFurry

Posted on 2017-12-23, 01:46

BastetFurry Offline

Rank Newbie

Rank: Newbie
Posts: 24
Joined: 2009-08-10, 22:28

I am onto something:

1export SDL_VIDEO_FULLSCREEN_DISPLAY=0

But now i don't get a streched image anymore.

EDIT:
Setting

1fullresolution=1920x1200

did the trick.
Off to place that export into .bashrc 😁

Reply 4 of 6, by Serious Callers Only

Posted on 2017-12-23, 04:25

Serious Callers Only Offline

Rank Member

Rank: Member
Posts: 421
Joined: 2003-04-26, 21:34

The xrandr driver controls if the image gets stretched in linux fullscreen or not. The default is actually to stretch but you can set it to 'full aspect' which stretches preserving aspect ratio.

https://www.reddit.com/r/emulation/comments/7 … leased/drewr16/

I find it highly strange you want to 'stretch' the image, and it should happen by default anyway.

Reply 5 of 6, by BastetFurry

Posted on 2017-12-23, 10:02

BastetFurry Offline

Rank Newbie

Rank: Newbie
Posts: 24
Joined: 2009-08-10, 22:28

Serious Callers Only wrote:
I find it highly strange you want to 'stretch' the image, and it should happen by default anyway.

Nope, i was getting a pixel perfect DOS shell on my screen, was almost ready to deploy the magnification glasses.
Strangely the Dosbox window stays open, just without content, by the way.
But yeah, works for me now and when someone else looks for a solution it now stands there. 😁

Reply 6 of 6, by Dominus

Posted on 2017-12-23, 10:24

Dominus Offline

Rank DOSBox Moderator

Rank: DOSBox Moderator
Posts: 9154
Joined: 2002-10-03, 09:54
Location: Ludwigsburg

Great work 😉

Windows 3.1x guide for DOSBox
60 seconds guide to DOSBox
DOSBox SVN snapshot for macOS (10.4-11.x ppc/intel 32/64bit) notarized for gatekeeper

Go to top of page Go to top of page

Back to DOSBox General