Qt5 and XCB (eg. OpenSuse)
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tbaudier commented
With Qt5.5.1 (or less), the mouse movement are slow.
It’s due to XCB. The proble is reported with Opensuse
The problem is described here with a patch:
https://codereview.qt-project.org/#/c/115531/
You have to copy/paste the 3 joined files into:
qtbase/src/plugins/platforms/xcb/
patch.zip
tbaudier commented
The problem is the same with the qt5-libs installed with yast.
And the problem isn’t resolved with the latest version (Qt5.6): https://bugreports.qt.io/browse/QTBUG-47069
And they will not correct it because “it’s not a bug”: https://bugreports.qt.io/browse/QTBUG-50338
Maybe a way to correct it can be seen in this script:
https://github.com/KDE/krita/blob/master/libs/ui/input/wintab/kis_xi2_event_filter.cpp