HiDPI font problems with 3840x2160 screen (Windows)

[erickdeoliveiraleal]

What steps will reproduce the problem?

I connected my notebook via hdmi cable to a 4k resolution TV, and I expected to have all text in a size that I can read. But JOSM has some parts of its UI with very small font. Below is the report from report bug feature.

Please provide any additional information below. Attach a screenshot if possible.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-06-28 19:08:21 +0200 (Sun, 28 Jun 2020)
Revision:16727
Build-Date:2020-06-29 01:30:50
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (16727 pt_BR) Windows 10 64-Bit
OS Build number: Windows 10 Home Single Language 2004 (19041)
Memory Usage: 308 MB / 4080 MB (115 MB allocated, but free)
Java version: 11.0.6+8-LTS, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Look and Feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Screen: \Display0 3840x2160 (scaling 3.0x3.0)
Maximum Screen Size: 3840x2160
Best cursor sizes: 16x16 -> 96x96, 32x32 -> 96x96

Plugins:
+ PicLayer (35405)
+ apache-commons (35362)
+ dataimport (35248)
+ ejml (35313)
+ geotools (35169)
+ jaxb (35092)
+ jts (35122)
+ michigan_left (35248)
+ opendata (35405)
+ reverter (35499)
+ turnrestrictions (35405)
+ utilsplugin2 (35487)

Map paint styles:
+ https://josm.openstreetmap.de/josmfile?page=Styles/iD&zip=1
- https://github.com/hotosm/HDM-JOSM-style/archive/master.zip
- https://github.com/bastik/mapcss-tools/raw/osm/mapnik2mapcss/osm-results/mapnik.zip
- https://josm.openstreetmap.de/josmfile?page=Styles/MapWithAI&zip=1

Last errors/warnings:
- W: extended font config - overriding 'filename.Mongolian_Baiti=monbaiti.ttf' with 'MONBAITI.TTF'

[stoecker]

Ticket #19454 has been marked as a duplicate of this ticket.

[Klumbumbus]

You can try if using Java 14 instead of 11 improves the situation.

[simon04]

Related: #11806, #17048, #18376

@johsin18, in case you want some more HiDPI challenges… ;-)

[johsin18]

I'm a bit surprised there is only one screen listed in the Status Report, as the reporter talks about the notebook and the TV.
@erickdeoliveiraleal Did you switch off your notebook screen? Did you restart JOSM after doing that? Did you try Java 14?
In case two screens are attached, it might help to declare the high-resolution one (so the 4K TV) the "main display" in the Window settings.

[erickdeoliveiraleal]

I only tested Oracle JDK 11.0.8.
My notebook screen is off and only TV is on. But if I open my notebook open and both screen are on the same happens. And yes I restarted JOSM.

[Klumbumbus]

@erickdeoliveiraleal: please try Java 14. I just tried it and saw no font size problems, see first attachment at #19703.

[erickdeoliveiraleal]

hello, I tried the josm-latest today and it looks good, using Java 11.

[skyper]

probably fixed with #8334.