https://bugs.kde.org/show_bug.cgi?id=423702
Bug ID: 423702
Summary: bad scaling on external monitor if
QT_SCREEN_SCALE_FACTORS is set.
Product: okular
Version: 1.10.2
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: PDF backend
Assignee: okular-de...@kde.org
Reporter: sanette-li...@laposte.net
Target Milestone: ---
Created attachment 129796
--> https://bugs.kde.org/attachment.cgi?id=129796&action=edit
good/bad antialiasing
SUMMARY
bad scaling on external monitor, almost impossible to read at normal size,
if QT_SCREEN_SCALE_FACTORS is set.
STEPS TO REPRODUCE
1. have a Hi-DPI laptop (here 3200x1800)
2. connect an external normal-dpi monitor (1920x1200) to extend the desktop
3. open a PDF document and move the window onto the external screen
OBSERVED RESULT
the PDF is scaled with very bad antialiasing.
EXPECTED RESULT
nice antialiasing
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Neon User
KDE Plasma Version: 5.19.2
KDE Frameworks Version: 5.71.0
Qt Version: 5.14.2
ADDITIONAL INFORMATION
Workaround:
export QT_SCREEN_SCALE_FACTORS=''
before using okular, then it works
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