Created attachment 172498 [details] screenshot SUMMARY konsole leaves small text artifacts when scaling is set to 125% on a 1080p monitor. The artifacts look like small 1 character wide underlines. If you refresh the window in some way like using the reset command, resize or move the window they disappear. This doesn't happen with 100% scaling and does not happen in other terminal emulators like Alacritty. I also tried running konsole with prime-run but it displayed the same symptoms. STEPS TO REPRODUCE 1. set display to 125% scaling and 1080p resolution 2. cd to a longer path like /etc/NetworkManager 3. cd back to home 4. press enter a few times OBSERVED RESULT small artifacts appear in empty spaces where text used to be EXPECTED RESULT konsole window is clean Operating System: Arch Linux KDE Plasma Version: 6.1.4 KDE Frameworks Version: 6.4.0 Qt Version: 6.7.2 mesa 24.1.5-1 Kernel Version: 6.10.3-arch1-2 (64-bit) Graphics Platform: Wayland Graphics Processor: AMD Radeon 660M
Probably unrelated but i also noticed fractional scaling is the source of another bug where kwin's window decorations have empty pixels with klassy: https://github.com/paulmcauley/klassy/issues/149
Still happening with 24.08.1-1 and qt 6.8.0
Git commit 94304ed698014d1ea519954433581d5ab5de00c3 by Christoph Cullmann, on behalf of Luca Carlon. Committed on 28/05/2025 at 05:36. Pushed by cullmann into branch 'master'. Fix for glitches in highgpi displays A fix for glitches in highdpi displays was already applied in the past in #1f0cefa. It was only applied to Qt5. Apparently, with Qt6 the behavior is identical, so applying it again is necessary. Related: bug 488505 M +1 -3 src/terminalDisplay/TerminalDisplay.h https://invent.kde.org/utilities/konsole/-/commit/94304ed698014d1ea519954433581d5ab5de00c3
Is this bug really fixed? I'm still getting it in the same way with konsole 25.04.3 frameworks 6.15.0 and qt 6.9.1. Or am i doing something wrong?