When I running any application installed in my Arch system all desktop became freezed by 0.3-1 seconds. Also I noticed disk usage indicator blinking after unfreezing. Video demonstration: https://youtu.be/IHZnqeG7plA KDE Plasma Version: 5.14.2 KDE Frameworks Version: 5.51.0 Qt Version: 5.11.2
This is Qt bug introduced with 5.11.2: https://bugreports.qt.io/browse/QTBUG-70760
*** This bug has been marked as a duplicate of bug 399053 ***