Adjust scaling of JabRef for high-resolution displays

[xolotl90]

I am facing a problem with the display resolution of Jabref I could not resolve yet. I am working on a high resolution monitor (2560x1440), but JabRef scales everything too big for me (see image). Ex-/ and Re-importing the settings while changing the "mainWindowSizeX/Y" fields have no effect at all. Is there a way to force Jabref to a smaller rendering?

This might be related to #5498, although changing the settings of resolution and scaling of my window manager have no effect, either.

I am using LinuxMint 19.3 with the cinnamon desktop.

[Siedlerchr]

You could try to apply these scale tips here in the sh startup file of JabRef:
https://wiki.archlinux.org/index.php/HiDPI#JavaFX

[xolotl90]

Thank you @Siedlerchr . I could resolve the issue by adding
-Dglass.gtk.uiScale=1.4
in the file JabRef.cfg (for me located at /opt/JabRef/lib/app/JabRef.cfg) in the section [JavaOptions]
The file looks now like this.

[Application]
app.name=JabRef
app.version=5.0.30001
app.runtime=$ROOTDIR/lib/runtime
app.identifier=org.jabref
app.classpath=
app.mainmodule=org.jabref/org.jabref.JabRefLauncher

[JavaOptions]
--module-path
$ROOTDIR/lib/app/mods
-Dglass.gtk.uiScale=1.4
[ArgOptions]

[Siedlerchr]

@xolotl90 Glad that it works! It would be nice if you could add a section to the FAQ with your configuration tips, so others with a similar problem can look there
https://docs.jabref.org/faq/faqs-on-operating-systems/faqlinux (Click on Edit on Gitbub)

[xolotl90]

I added a small paragraph about this and made a pull request. 260