Created attachment 119220 [details] Kate screenshot - Horizontal lines SUMMARY Similar to BUG 373232, when using non integer scaling, lines appear after every second row. STEPS TO REPRODUCE 1. Use HiDPI monitor with scaling set to 1.7 2. Open Kate 3. Observe the lines SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora 29 KDE (available in About System) KDE Plasma Version: 5.14.5 KDE Frameworks Version: 5.55.0 Qt Version: 5.11.3 ADDITIONAL INFORMATION See attached screenshot.
*** This bug has been marked as a duplicate of bug 390451 ***