https://bugs.kde.org/show_bug.cgi?id=415421
Fabian Vogt <fab...@ritter-vogt.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Latest Commit| |https://commits.kde.org/pla
| |sma-workspace/ea66bff2af846
| |6f2bb5acafcc43ac8f79b1f447f
Status|REOPENED |RESOLVED
Resolution|--- |FIXED
--- Comment #31 from Fabian Vogt <fab...@ritter-vogt.de> ---
Git commit ea66bff2af8466f2bb5acafcc43ac8f79b1f447f by Fabian Vogt.
Committed on 21/01/2020 at 10:56.
Pushed by fvogt into branch 'Plasma/5.18'.
Also disable automatic scaling on Qt >= 5.14
Summary:
Applications which set `Qt::AA_EnableHighDpiScaling` use the DPI of the monitor
the window is on to calculate an additional scaling factor.
Plasma sets `QT_SCREEN_SCALE_FACTORS` in the environment for manual
specification of per-monitor scale, which combined with the automatic scaling
may result in double scaling.
To disable the automatic scaling, `QT_AUTO_SCREEN_SCALE_FACTOR=0` has to be
set, even on Qt 5.14.
As a side effect, this works around QTBUG-80967 as well.
Test Plan: On X11, with a >144dpi monitor and a scaling factor of 2 set
manually, scaling was doubled previously. Now it works as expected.
Reviewers: #plasma, apol, davidedmundson, fvogt
Reviewed By: #plasma, davidedmundson, fvogt
Subscribers: acooligan, fvogt, asturmlechner, dfaure, davidedmundson,
anthonyfieroni, plasma-devel
Tags: #plasma
Differential Revision: https://phabricator.kde.org/D26185
M +0 -2 startkde/startplasma.cpp
https://commits.kde.org/plasma-workspace/ea66bff2af8466f2bb5acafcc43ac8f79b1f447f
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