GUI scaling option throws error on start - v0.13

[Paradox355]

I've tried using --gui-scale argument and it always results in "Child process exited with code 1". This happens regardless how arg is passed ... via Windows shortcut, arguments section of .cfg, or via .cmd batch file. The default font size is illegible on 1440p resolution, making game completely unplayable.

v0.13 / Windows 11 22H2 / 1440p resolution / Radeon RX 6600XT

Sample screenshot at 1440:

[stiangre]

The "--gui-scale" parameter was removed from the game in version 0.12.0.

The question is why the automatic font scaling didn't work for you. Please create a bug report here:
https://sourceforge.net/p/freecol/bugs/new/
...and please attach the "FreeCol.log" file.

As a workaround, you can edit the file "options.xml" in order to change the scaling if you are unable to do so using the "Preferences" window. In that case, change this line:
<rangeOption id="model.option.displayScaling" value="0" localizedLabels="true">
to:
<rangeOption id="model.option.displayScaling" value="200" localizedLabels="true">

[blackmoon1910]

thanks. :) i also had issues with the game looking ridiculously small at launch lol, on a 1440p display. couldn't even read anything - i figured there might've been an issue so i checked... cheers. can't wait to try this!! fond memories of my childhood :).

[hfiguiere]

On Linux it doesn't work because it thinks that it is dpi 96.

net.sf.freecol.client.gui.SwingGUI <init>
        INFO: GUI constructed using scale factor 1.25
        Sun Oct 05 23:24:49 EDT 2025
        Thread: 24
net.sf.freecol.client.gui.SwingGUI determineScaleFactorUsingClientOptions
        INFO: Automatic scale factor: 1.25 (reported DPI: 96, screen height: 1920)
        Sun Oct 05 23:24:49 EDT 2025
        Thread: 24

But gdk_monitor_get_scale_factor() returns 2 so whatever the toolkit does it's doing it wrong. (passing that number via GDK_SCALE works on other Java/Swing apps)

And since the scaling can't be set manually it's simply unusable.