Does not scale properly

[9a3eedi]

Hi,

I'm running Manjaro Linux on a Dell XPS 13 with a 3200x1800 display and 1.5x scaling on X11 and KDE Plasma. When I start JDownloader, the window is very small. I tried to start it with the argument -Dsun.java2d.uiScale=2.0 as suggested here but that didn't fix anything, but I probably did it wrong. I'm not sure what to try next.

[dfaust]

This worked for me on X11:

sudo flatpak override org.jdownloader.JDownloader --env=JAVA_TOOL_OPTIONS=-Dsun.java2d.uiScale=2

[9a3eedi]

Since my first comment, my machine is now running on Wayland. I also switched from the JAR release to flatpak.

I tested the above command under Wayland, and my laptop was also connected to an external 1080p display with different scaling. This actually worked very well, even on both displays. Thank you!

[debilin]

Can we some how build this command into flatpak itself so that it's configurable by the user?

[KuSh]

Forcing uiScale to 2 will unfortunately cause problems on low-dpi systems. I'd like to find a way to have it set automatically but didn't found how yet.

Could you try to just set -Dsun.java2d.uiScale.enabled=true and see if that works for you @debilin ?

[KuSh]

Found this that we can build on

[debilin]

Forcing uiScale to 2 will unfortunately cause problems on low-dpi systems. I'd like to find a way to have it set automatically but didn't found how yet.

Could you try to just set -Dsun.java2d.uiScale.enabled=true and see if that works for you @debilin ?

@KuSh The command works for me. I just needed a way to switch the scale between 1 and 2 depending on the screen I use without using commandline.

[KuSh]

I've just tried to automatically compute the scale according to screen resolution, but 1. it doesn't work and I didn't found a sure way to do it, and 2. even if I could I'm not sure everyone would want to scale the ui (I certainly don't)

I think I'll document the option to override default settings in a FAQ chapter in the readme as it is done on some other repo