https://bugs.kde.org/show_bug.cgi?id=449398
Bug ID: 449398 Summary: Non-Qt/KDE apps stutter / have rendering issues under Wayland Product: kwin Version: master Platform: Compiled Sources OS: Linux Status: REPORTED Severity: major Priority: NOR Component: wayland-generic Assignee: kwin-bugs-n...@kde.org Reporter: rapiteanu.cata...@gmail.com Target Milestone: --- SUMMARY When using Wayland with the Nvidia proprietary driver, all non-Qt/KDE apps stutter to a point that makes them unusable. This is extremely visible when the application does some playback (like playing a video in Firefox) or typing something in a box (like the Matrix chat Element). It seems that instead of rendering the next frame, for a split second the previous frame is being rendered and only then the correct frame is being drawn. For example, if you have in a text box the word "hell", when you type the last "o", sometimes, the word drawn will be "hel" and only a bit afterwards you will see the full "hello" word. STEPS TO REPRODUCE 1. Start a Wayland session with the Nvidia proprietary driver. 2. Start any type of non-Qt/KDE application (like Element chat). 3. Type a message. OBSERVED RESULT The rendered frames are not sequential. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Plasma master (Wayland session) KDE Plasma Version: 5.23.90 master KDE Frameworks Version: 5.91 master Qt Version: 5.15.2 Video Driver: nvidia 495.46, egl-wayland 2:1.1.9-master, xorg-xwayland master 21.1.2.901.r270 -- You are receiving this mail because: You are watching all bug changes.