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Posted to commits@netbeans.apache.org by "Michal Hlavac (Jira)" <ji...@apache.org> on 2021/11/19 09:11:00 UTC
[jira] [Commented] (NETBEANS-2360) HiDPI scaling (and anti-aliasing on KDE) not applied automatically on Linux
[ https://issues.apache.org/jira/browse/NETBEANS-2360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17446382#comment-17446382 ]
Michal Hlavac commented on NETBEANS-2360:
-----------------------------------------
Hi Eirik, sorry for my late answer. No I haven't multiple monitors. I am using Dell XPS 15 laptop with 4K display.
When I run {{xdpyinfo | grep -B 2 resolution}} I get:
{code:java}
screen #0:
dimensions: 3840x2160 pixels (508x285 millimeters)
resolution: 192x193 dots per inch {code}
I don't know why I have dpi {{192x193}}
I checked Idea code and they check HiDpi in java code. Sample code is in [^CheckHiDpi.java]attachment.
> 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: CheckHiDpi.java, image-2021-09-12-21-01-33-807.png, image-2021-09-12-21-05-06-852.png, kubunt.jpg
>
> Time Spent: 50m
> 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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