https://bugs.kde.org/show_bug.cgi?id=465158
--- Comment #26 from Matthias Dahl <ua_bugz_...@binary-island.eu> --- Since my bug 466643 was marked a duplicate of this one, I will comment here. Though I am not entirely sure if this bug is the same bug I am experiencing. Here are some observations from my side: 1. I am seeing flickering blue lines (full and partial) between the items of menus. For example, if you right-click on the desktop, move your mouse around on the opening menu (also around the desktop itself), those flickering blue lines will be between the menu items. The flickering stops immediately when the mouse movement stops. Also, while using konsole and Midnight Commander, moving the "selection bar" up and down over files, will leave line artifacts as well. 2. This is with any scale fractional scale, integer scales are fine. 3. Desktop effects seemingly have no effect on this. I also don't have blur or background contrast active. 4. This happen with Breeze (Dark/Light) and Adwaita (Dark/Light) for example but disappears completely with Fusion which, otoh, seems somewhat slow/sluggish as a downside. 5. I tried https://invent.kde.org/plasma/kwin/-/merge_requests/3236 but it made no noticeable difference in my case (currently running with it). 6. I have seen this for quite some time now, probably since Nvidia introduced their GBM support. 7. I am running the latest git qt-5 branches for everything kde (Plasma, kwin, etc.) except normal applications. 8. Java applications using FlatLaf are apparently also completely fine. KWin Support Information: The following information should be used when requesting support on e.g. https://forum.kde.org. It provides information about the currently running instance, which options are used, what OpenGL driver and which effects are running. Please post the information provided underneath this introductory text to a paste bin service like https://paste.kde.org instead of pasting into support threads. ========================== Version ======= KWin version: 5.27.2 Qt Version: 5.15.8 Qt compile version: 5.15.8 XCB compile version: 1.15 Operation Mode: Xwayland Build Options ============= KWIN_BUILD_DECORATIONS: yes KWIN_BUILD_TABBOX: yes KWIN_BUILD_ACTIVITIES: yes HAVE_X11_XCB: yes HAVE_EPOXY_GLX: yes X11 === Vendor: The X.Org Foundation Vendor Release: 12201008 Protocol Version/Revision: 11/0 SHAPE: yes; Version: 0x11 RANDR: yes; Version: 0x14 DAMAGE: yes; Version: 0x11 Composite: yes; Version: 0x4 RENDER: yes; Version: 0xb XFIXES: yes; Version: 0x50 SYNC: yes; Version: 0x31 GLX: yes; Version: 0x0 Decoration ========== Plugin: org.kde.breeze Theme: Breeze Plugin recommends border size: None onAllDesktopsAvailable: true alphaChannelSupported: true closeOnDoubleClickOnMenu: false decorationButtonsLeft: 0, 2 decorationButtonsRight: 6, 3, 4, 5 borderSize: 0 gridUnit: 10 font: Noto Sans,10,-1,0,50,0,0,0,0,0 smallSpacing: 2 largeSpacing: 10 Output backend ============== Name: DRM Active: true Atomic Mode Setting on GPU 0: true Cursor ====== themeName: breeze_cursors themeSize: 36 Options ======= focusPolicy: 0 xwaylandCrashPolicy: xwaylandMaxCrashCount: 3 nextFocusPrefersMouse: false clickRaise: true autoRaise: false autoRaiseInterval: 0 delayFocusInterval: 0 shadeHover: false shadeHoverInterval: 250 separateScreenFocus: false activeMouseScreen: true placement: activationDesktopPolicy: 0 focusPolicyIsReasonable: true borderSnapZone: 10 windowSnapZone: 10 centerSnapZone: 0 snapOnlyWhenOverlapping: false rollOverDesktops: true focusStealingPreventionLevel: 1 operationTitlebarDblClick: 5000 operationMaxButtonLeftClick: 5000 operationMaxButtonMiddleClick: 5015 operationMaxButtonRightClick: 5014 commandActiveTitlebar1: 0 commandActiveTitlebar2: 28 commandActiveTitlebar3: 2 commandInactiveTitlebar1: 4 commandInactiveTitlebar2: 28 commandInactiveTitlebar3: 2 commandWindow1: 7 commandWindow2: 8 commandWindow3: 8 commandWindowWheel: 28 commandAll1: 10 commandAll2: 3 commandAll3: 14 keyCmdAllModKey: 16777250 condensedTitle: false electricBorderMaximize: true electricBorderTiling: true electricBorderCornerRatio: 0.25 borderlessMaximizedWindows: false killPingTimeout: 5000 hideUtilityWindowsForInactive: true compositingMode: 1 useCompositing: true hiddenPreviews: 1 glSmoothScale: 2 glStrictBinding: false glStrictBindingFollowsDriver: true glPreferBufferSwap: 99 glPlatformInterface: 2 windowsBlockCompositing: true latencyPolicy: renderTimeEstimator: allowTearing: true Screen Edges ============ desktopSwitching: true desktopSwitchingMovingClients: true cursorPushBackDistance: 1x1 timeThreshold: 300 reActivateThreshold: 350 actionTopLeft: 0 actionTop: 0 actionTopRight: 0 actionRight: 0 actionBottomRight: 0 actionBottom: 0 actionBottomLeft: 0 actionLeft: 0 Screens ======= Active screen follows mouse: yes Number of Screens: 1 Screen 0: --------- Name: HDMI-A-1 Enabled: 1 Geometry: 0,0,2560x1440 Scale: 1.5 Refresh Rate: 60000 Adaptive Sync: incapable Compositing =========== Compositing is active Compositing Type: OpenGL OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: NVIDIA GeForce GTX 1080/PCIe/SSE2 OpenGL version string: 3.1.0 NVIDIA 530.30.02 OpenGL platform interface: EGL OpenGL shading language version string: 1.40 NVIDIA via Cg compiler Driver: NVIDIA Driver version: 530.30.2 GPU class: Unknown OpenGL version: 3.1 GLSL version: 1.40 X server version: 1.22.1 Linux kernel version: 6.1.11 Direct rendering: Requires strict binding: no GLSL shaders: yes Texture NPOT support: yes Virtual Machine: no OpenGL 2 Shaders are used Loaded Effects: --------------- colorpicker outputlocator screenshot kwin4_effect_sessionquit kwin4_effect_login kwin4_effect_logout kwin4_effect_windowaperture magiclamp slide slideback kwin4_effect_maximize kwin4_effect_fullscreen kwin4_effect_scale kwin4_effect_fadingpopups kwin4_effect_frozenapp kwin4_effect_morphingpopups kwin4_effect_dialogparent desktopgrid highlightwindow overview tileseditor windowview blendchanges startupfeedback kscreen screentransform Currently Active Effects: ------------------------- Effect Settings: ---------------- colorpicker: outputlocator: screenshot: kwin4_effect_sessionquit: pluginId: kwin4_effect_sessionquit isActiveFullScreenEffect: false kwin4_effect_login: pluginId: kwin4_effect_login isActiveFullScreenEffect: false kwin4_effect_logout: pluginId: kwin4_effect_logout isActiveFullScreenEffect: false kwin4_effect_windowaperture: pluginId: kwin4_effect_windowaperture isActiveFullScreenEffect: false magiclamp: slide: horizontalGap: 45 verticalGap: 20 slideBackground: false slideback: kwin4_effect_maximize: pluginId: kwin4_effect_maximize isActiveFullScreenEffect: false kwin4_effect_fullscreen: pluginId: kwin4_effect_fullscreen isActiveFullScreenEffect: false kwin4_effect_scale: pluginId: kwin4_effect_scale isActiveFullScreenEffect: false kwin4_effect_fadingpopups: pluginId: kwin4_effect_fadingpopups isActiveFullScreenEffect: false kwin4_effect_frozenapp: pluginId: kwin4_effect_frozenapp isActiveFullScreenEffect: false kwin4_effect_morphingpopups: pluginId: kwin4_effect_morphingpopups isActiveFullScreenEffect: false kwin4_effect_dialogparent: pluginId: kwin4_effect_dialogparent isActiveFullScreenEffect: false desktopgrid: activeView: gridRows: 2 gridColumns: 4 animationDuration: 300 layout: 1 partialActivationFactor: 0 gestureInProgress: false showAddRemove: true desktopNameAlignment: 0 desktopLayoutMode: 0 customLayoutRows: 2 highlightwindow: overview: activeView: animationDuration: 300 layout: 1 ignoreMinimized: false blurBackground: true partialActivationFactor: 0 gestureInProgress: false searchText: tileseditor: activeView: animationDuration: 200 windowview: activeView: animationDuration: 300 layout: 1 ignoreMinimized: false mode: 6946816 partialActivationFactor: 0 gestureInProgress: false searchText: blendchanges: startupfeedback: type: 1 kscreen: screentransform: Loaded Plugins: --------------- kwin5_plugin_buttonrebinds kwin5_plugin_colord kwin5_plugin_krunner kwin5_plugin_nightcolor kwin5_plugin_screencast Available Plugins: ------------------ kwin5_plugin_buttonrebinds kwin5_plugin_colord kwin5_plugin_krunner kwin5_plugin_nightcolor kwin5_plugin_screencast -- You are receiving this mail because: You are watching all bug changes.
