Package: openjdk-21-jre
Version: 21.0.8+9-1
Severity: normal

By default, text is too small with HiDPI screens, and I couldn't
find any documentation in Debian on how to change that.

I've eventually found

  https://wiki.archlinux.org/title/HiDPI

which mentions the sun.java2d.uiScale property, e.g.

  java -Dsun.java2d.uiScale=2 ...

But it is not possible to choose a non-integer scale factor.

There should be proper documentation in the java(1) man page
and/or README.Debian file.

-- System Information:
Debian Release: 13.0
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'testing-security'), (500, 
'stable-updates'), (500, 'stable-security'), (500, 'stable-debug'), (500, 
'proposed-updates-debug'), (500, 'unstable'), (500, 'testing'), (500, 
'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.7.12-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages openjdk-21-jre depends on:
ii  libasound2t64            1.2.14-1
ii  libc6                    2.41-11
ii  libcups2t64              2.4.10-3
ii  libfontconfig1           2.15.0-2.3
ii  libfreetype6             2.13.3+dfsg-1
ii  libgcc-s1                14.2.0-19
ii  libgif7                  5.2.2-1+b1
ii  libgl1                   1.7.0-1+b2
ii  libglib2.0-0t64          2.84.3-1
ii  libgtk-3-0t64            3.24.49-3
ii  libharfbuzz0b            10.2.0-1+b1
ii  libjpeg62-turbo          1:2.1.5-4
ii  libpng16-16t64           1.6.48-1
ii  libstdc++6               14.2.0-19
ii  libx11-6                 2:1.8.12-1
ii  libxext6                 2:1.3.4-1+b3
ii  libxi6                   2:1.8.2-1
ii  libxinerama1             2:1.1.4-3+b4
ii  libxrandr2               2:1.5.4-1+b3
ii  libxrender1              1:0.9.12-1
ii  libxtst6                 2:1.2.5-1
ii  openjdk-21-jre-headless  21.0.8+9-1
ii  zlib1g                   1:1.3.dfsg+really1.3.1-1+b1

Versions of packages openjdk-21-jre recommends:
ii  fonts-dejavu-extra       2.37-8
ii  libatk-wrapper-java-jni  0.40.0-3+b3

openjdk-21-jre suggests no packages.

-- no debconf information

-- 
Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)

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