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https://issues.apache.org/jira/browse/NETBEANS-2360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17413771#comment-17413771
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Michal Hlavac commented on NETBEANS-2360:
-----------------------------------------
Hi Eirik,
since dpi is not in the output of {{xrdb}} command, Netbeans runs without hiDPI
scaling. I have to run it with {{-J-Dawt.useSystemAAFontSettings=on
-J-Dsun.java2d.uiScale=2}}. Font antialiasing is not a problem.
Output of {{echo $KDE_FULL_SESSION}}:
{code:java}
hlavki@hlknb:~> echo $KDE_FULL_SESSION
true{code}
!image-2021-09-12-21-01-33-807.png|width=334,height=191!
> HiDPI scaling (and anti-aliasing on KDE) not applied automatically on Linux
> ---------------------------------------------------------------------------
>
> Key: NETBEANS-2360
> URL: https://issues.apache.org/jira/browse/NETBEANS-2360
> Project: NetBeans
> Issue Type: Bug
> Components: platform - Launchers&CLI
> Affects Versions: 11.0, 12.2
> Environment: Kubuntu 18.03
> Oracle JDK 11.0.2
> Reporter: Eirik Bakke
> Priority: Major
> Labels: HiDPI, Linux, pull-request-available
> Attachments: image-2021-09-12-21-01-33-807.png, kubunt.jpg
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Running NetBeans 11 on Kubuntu 18.03, GUI text size does not seem to take
> into account the system's default HiDPI scaling. This was reported in a
> Twitter thread on https://twitter.com/nicktail/status/1114789604337405952 .
> Note that Window decorations seem to be the correct size.
> Setting the GDK_SCALE environment variable seems to fix the problem, if I
> understand the originally reporter correctly. This could probably be done
> easily from the NetBeans launcher script (netbeans/bin). But it wouldn't fix
> the problem in multi-monitor setups. We should investigate what could be done
> to make scaling work properly in multi-monitor setups involving one HiDPI
> screen and one non-HiDPI screen.
> Before merging a patch to the launcher script, it should be tested on a
> couple of different Linux environments, using both HiDPI and non-HiDPI
> screens. Note that the UNIX launcher script is also used on MacOS.
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