JDK-8156149 : Blurry rendering on Windows 7 at 125% screen setting
- Type: Bug
- Component: client-libs
- Sub-Component: 2d
- Affected Version: 9
- Priority: P2
- Status: Closed
- Resolution: Duplicate
- OS: windows_7
- CPU: x86_64
- Submitted: 2016-05-05
- Updated: 2019-03-08
- Resolved: 2016-08-19
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
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| JDK 9 |
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9Resolved  |
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Description
FULL PRODUCT VERSION : java version "9-ea" Java(TM) SE Runtime Environment (build 9-ea+116) Java HotSpot(TM) 64-Bit Server VM (build 9-ea+116, mixed mode) ADDITIONAL OS VERSION INFORMATION : Microsoft Windows [Version 6.1.7601] EXTRA RELEVANT SYSTEM CONFIGURATION : In the windows control setting for screen it is set at 125% A DESCRIPTION OF THE PROBLEM : Font rendering (or image display?) is blurry when screen options set at 125%. Sadly I can't attach screenshots. This can be tested with any GUI program, e.g. jvisualvm.exe => look at the splash window. I have screenshots of the splash window with both JDKs. They have different sizes. This looks as if java9 does a (poor) magnifying after the rendering is done. The good one is 470 x 270, the bad one is 589 x 339. The same problem can also be seen with the Apache PDFBOX debugger-app-2.0.1.jar (get it at https://pdfbox.apache.org/download.cgi ) and then drag and drop any PDF with text on it. Even the menus look poor. After opening a PDF, use the menu and click "View", "Zoom". The bullet symbol looks bad. There is a similar issue: http://bugs.java.com/bugdatabase/view_bug.do?bug_id=8129862 But that one is said to be resolved, which is why I opened this issue. REGRESSION. Last worked in version 7u79 ADDITIONAL REGRESSION INFORMATION: java version "1.7.0_79" Java(TM) SE Runtime Environment (build 1.7.0_79-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode) (It was also fine working on the latest JDK8, which I use at work but not here at home) STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : start C:\Program Files\Java\jdk-9\bin\jvisualvm.exe and look at the splash window. EXPECTED VERSUS ACTUAL BEHAVIOR : EXPECTED - sharp glyphs ACTUAL - blurry glyphs REPRODUCIBILITY : This bug can be reproduced always. CUSTOMER SUBMITTED WORKAROUND : set windows screen control options at 100%
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