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. -- You received this bug notification because you are a member of OpenJDK, which is subscribed to openjdk-7 in Ubuntu. 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openjdk-7/+bug/1497816/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~openjdk Post to : [email protected] Unsubscribe : https://launchpad.net/~openjdk More help : https://help.launchpad.net/ListHelp
