openjdk team mailing list archive

[Tiago Stürmer Daitx <1497816@xxxxxxxxxxxxxxxxxx>]

Michael,

Thank you for taking the time to investigate and report this. Indeed
JEP-263 makes clear that there is no support for Linux on OpenJDK. The
linked bugs to that JEP also indicates that Windows is not supported
yet. Only OSX has high DPI support.

Are you able to reproduce the issue with the simple java test case
reported at https://bugs.openjdk.java.net/browse/JDK-8058742 ?


The answers to the superuser.com question indicates that tuxjdk _might_ have fixes for at least the font aliasing issue, but some users report that it didn't work for them. This will require additional tests, including tests with GDK_SCALE or Gnome's scaling-factor setting to simulate a high dpi display. Additional information will be added to this bug as the investigation proceeds.

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https://bugs.launchpad.net/bugs/1497816

Title:
  No support for HDPI/retina displays in Java 7/8

Status in openjdk-7 package in Ubuntu:
  Incomplete

Bug description:
  I have Ubuntu Wily 15.10 installed on a MBP retina and Java GUI apps
  (sadly all too common in research fields) are not scaled up to cope
  with the high pixel density, and so are displayed with unreadable
  fonts, icons, etc, which make them unusable.

  This is the case for both the OpenJDK 7 and 8 runtimes.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: openjdk-7-jre 7u85-2.6.1-2
  ProcVersionSignature: Ubuntu 4.2.0-10.11-generic 4.2.0
  Uname: Linux 4.2.0-10-generic x86_64
  ApportVersion: 2.18.1-0ubuntu1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Mon Sep 21 12:58:21 2015
  InstallationDate: Installed on 2015-07-22 (61 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
  SourcePackage: openjdk-7
  UpgradeStatus: Upgraded to wily on 2015-08-27 (24 days ago)

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