From 90112ef0cd6ed33f28b657f59d1cd3196077e955 Mon Sep 17 00:00:00 2001
From: David Edmundson <david@davidedmundson.co.uk>
Date: Tue, 26 Jan 2016 17:01:40 +0000
Subject: [PATCH] Use new Qt flag to disable high DPI scaling on X

This flag was set for main_wayland but not X.

BUG: 357896
REVIEW: 126810
---
 main_x11.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/main_x11.cpp b/main_x11.cpp
index 2c137431b5..b2139e52e3 100644
--- a/main_x11.cpp
+++ b/main_x11.cpp
@@ -269,6 +269,9 @@ KWIN_EXPORT int kdemain(int argc, char * argv[])
     setenv("QT_QPA_PLATFORM", "xcb", true);
 
     qunsetenv("QT_DEVICE_PIXEL_RATIO");
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
+    QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling);
+#endif
 
     KWin::ApplicationX11 a(argc, argv);
     a.setupTranslator();