Dosbox fullscreen mode is broken with my latest video drivers \ VOGONS

Dosbox fullscreen mode is broken with my latest video drivers

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First post, by jarreboum

Posted on 2013-01-28, 11:33

jarreboum Offline

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Hi there

Upon installing Steam I was prompted to install this ppa as well: http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu . After that I couldn't use Dosbox in fullscreen anymore: I had the game running in the background but no picture at all. Everything is fine in windowed mode.

I was using an empty dosbox.conf with this setup to get games fullscreen:

1[sdl]
2fullscreen=true
3fullresolution=1024x600
4output=overlay

1024x600 is my screen and desktop resolution, overlay allows for the picture to be stretched to fill the screens without deformation (with black bars) while using surface resulted in a fullscreen smaller picture in a black box.

Now the only way to get fullscreen back working is to use fullresolution=original but this also means permament blackbox and changing output= does not solve this.

I'm using elementary OS (based on Ubuntu 12.04, kernel 3.2.0-37), Dosbox 0.74 from the Ubuntu repos.
The computer has an Intel Atom N270 with an integrated GMA950.

Reply 1 of 13, by Serious Callers Only

Posted on 2013-01-28, 12:00

Serious Callers Only Offline

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The ubuntu-x swat ppa says (in the main page):
"If you are upgrading from one release to another with this PPA activated, please install the ppa-purge package and use it to downgrade everything in here beforehand. sudo ppa-purge ppa:ubuntu-x-swat/x-updates will do it."

Did you dist-upgrade?

Reply 2 of 13, by jarreboum

Posted on 2013-01-28, 17:30

jarreboum Offline

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Serious Callers Only wrote:
Did you dist-upgrade?

nope, just added the ppa and apt-get upgrade.

Reply 3 of 13, by jarreboum

Posted on 2013-02-04, 14:34

jarreboum Offline

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So what can I do?

Reply 4 of 13, by Qbix

Posted on 2013-02-04, 15:29

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Don't upgrade your videocard drivers ?

Water flows down the stream
How to ask questions the smart way!

Reply 5 of 13, by jarreboum

Posted on 2013-02-04, 16:51

jarreboum Offline

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That's only a temporary fix. Someday I'll have to upgrade my distro and my drivers with it.

What can I do to help identify this bug so it can be fixed by Dosbox or Intel (whatever side this bug come from)?

Reply 6 of 13, by Dominus

Posted on 2013-02-04, 19:01

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Look for SDL...

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Reply 7 of 13, by jarreboum

Posted on 2013-02-05, 00:00

jarreboum Offline

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Dominus wrote:
Look for SDL...

And by that you mean... ?

Reply 8 of 13, by Dominus

Posted on 2013-02-05, 05:17

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That this is likely the culprit and not dosbox.

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Reply 9 of 13, by jarreboum

Posted on 2013-02-05, 10:26

jarreboum Offline

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Dominus wrote:
That this is likely the culprit and not dosbox.

Ok. How can I check this?

Reply 10 of 13, by Dominus

Posted on 2013-02-05, 10:29

Dominus Offline

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Run other sdl apps, as exult, scummvm...

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 11 of 13, by jarreboum

Posted on 2013-02-05, 12:40

jarreboum Offline

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Dominus wrote:
Run other sdl apps, as exult, scummvm...

I had no problem with SCUMMVM but it did the same thing with exult.

Now where are these sdl guys?

Reply 12 of 13, by Zorbid

Posted on 2013-02-05, 16:56

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http://www.libsdl.org/

Reply 13 of 13, by jarreboum

Posted on 2013-02-05, 17:11

jarreboum Offline

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Zorbid wrote:
http://www.libsdl.org/

Tank you. I believe this is this bug http://bugzilla.libsdl.org/show_bug.cgi?id=1685 which I commented on.

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