Desktops start to flicker with black artifacts all over the screen. This doesn't go away until kwin is restarted. I am running an Nvidia GTX 1060 running drivers 390.48 on Kubuntu 18.04. Here is a video also showing the issue: https://youtu.be/bXPTfTiB9Jw
Please provide the output of qdbus org.kde.KWin /KWin supportInformation
I have since restarted it so it isn't happening anymore. Here is the output when it is not happening. When it happens I will repost it. KWin Support Information: The following information should be used when requesting support on e.g. http://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 http://paste.kde.org instead of pasting into support threads. ========================== Version ======= KWin version: 5.12.4 Qt Version: 5.9.5 Qt compile version: 5.9.5 XCB compile version: 1.13 Operation Mode: X11 only Build Options ============= KWIN_BUILD_DECORATIONS: yes KWIN_BUILD_TABBOX: yes KWIN_BUILD_ACTIVITIES: yes HAVE_INPUT: yes HAVE_DRM: yes HAVE_GBM: yes HAVE_X11_XCB: yes HAVE_EPOXY_GLX: yes HAVE_WAYLAND_EGL: yes X11 === Vendor: The X.Org Foundation Vendor Release: 11906000 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: Blur: 0 onAllDesktopsAvailable: true alphaChannelSupported: true closeOnDoubleClickOnMenu: false decorationButtonsLeft: 0, 2 decorationButtonsRight: 6, 3, 4, 5 borderSize: 3 gridUnit: 10 font: Noto Sans,10,-1,0,50,0,0,0,0,0,Regular smallSpacing: 2 largeSpacing: 10 Platform ========== Name: KWin::X11StandalonePlatform Options ======= focusPolicy: 0 nextFocusPrefersMouse: false clickRaise: true autoRaise: false autoRaiseInterval: 0 delayFocusInterval: 0 shadeHover: false shadeHoverInterval: 250 separateScreenFocus: false placement: 4 focusPolicyIsReasonable: true borderSnapZone: 10 windowSnapZone: 10 centerSnapZone: 0 snapOnlyWhenOverlapping: false rollOverDesktops: true focusStealingPreventionLevel: 1 legacyFullscreenSupport: false operationTitlebarDblClick: 5000 operationMaxButtonLeftClick: 5000 operationMaxButtonMiddleClick: 5015 operationMaxButtonRightClick: 5014 commandActiveTitlebar1: 0 commandActiveTitlebar2: 30 commandActiveTitlebar3: 2 commandInactiveTitlebar1: 4 commandInactiveTitlebar2: 30 commandInactiveTitlebar3: 2 commandWindow1: 7 commandWindow2: 8 commandWindow3: 8 commandWindowWheel: 31 commandAll1: 10 commandAll2: 3 commandAll3: 14 keyCmdAllModKey: 16777251 showGeometryTip: false condensedTitle: false electricBorderMaximize: true electricBorderTiling: true electricBorderCornerRatio: 0.25 borderlessMaximizedWindows: false killPingTimeout: 5000 hideUtilityWindowsForInactive: true inactiveTabsSkipTaskbar: false autogroupSimilarWindows: false autogroupInForeground: true compositingMode: 1 useCompositing: true compositingInitialized: true hiddenPreviews: 1 glSmoothScale: 2 xrenderSmoothScale: false maxFpsInterval: 16666666 refreshRate: 0 vBlankTime: 6000000 glStrictBinding: false glStrictBindingFollowsDriver: true glCoreProfile: false glPreferBufferSwap: 99 glPlatformInterface: 1 windowsBlockCompositing: true Screen Edges ============ desktopSwitching: false desktopSwitchingMovingClients: false cursorPushBackDistance: 1x1 timeThreshold: 150 reActivateThreshold: 350 actionTopLeft: 0 actionTop: 0 actionTopRight: 0 actionRight: 0 actionBottomRight: 0 actionBottom: 0 actionBottomLeft: 0 actionLeft: 0 Screens ======= Multi-Head: no Active screen follows mouse: no Number of Screens: 1 Screen 0: --------- Name: HDMI-0 Geometry: 0,0,1920x1080 Scale: 1 Refresh Rate: 60 Compositing =========== Compositing is active Compositing Type: OpenGL OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce GTX 1060 6GB/PCIe/SSE2 OpenGL version string: 4.6.0 NVIDIA 390.48 OpenGL platform interface: GLX OpenGL shading language version string: 4.60 NVIDIA Driver: NVIDIA Driver version: 390.48 GPU class: Unknown OpenGL version: 4.6 GLSL version: 4.60 X server version: 1.19.6 Linux kernel version: 4.15 Direct rendering: Requires strict binding: no GLSL shaders: yes Texture NPOT support: yes Virtual Machine: no OpenGL 2 Shaders are used Painting blocks for vertical retrace: yes Loaded Effects: --------------- zoom kwin4_effect_frozenapp kwin4_effect_logout kwin4_effect_dialogparent kwin4_effect_maximize kwin4_effect_login kwin4_effect_windowaperture kwin4_effect_fade kwin4_effect_translucency kwin4_effect_morphingpopups slidingpopups wobblywindows slide screenshot minimizeanimation desktopgrid colorpicker presentwindows highlightwindow blur contrast startupfeedback screenedge kscreen Currently Active Effects: ------------------------- blur contrast Effect Settings: ---------------- zoom: zoomFactor: 1.2 mousePointer: 0 mouseTracking: 0 enableFocusTracking: false followFocus: true focusDelay: 350 moveFactor: 20 targetZoom: 1 kwin4_effect_frozenapp: kwin4_effect_logout: kwin4_effect_dialogparent: kwin4_effect_maximize: kwin4_effect_login: kwin4_effect_windowaperture: kwin4_effect_fade: kwin4_effect_translucency: kwin4_effect_morphingpopups: slidingpopups: fadeInTime: 150 fadeOutTime: 250 wobblywindows: stiffness: 0.15 drag: 0.8 moveFactor: 0.1 xTesselation: 20 yTesselation: 20 minVelocity: 0 maxVelocity: 1000 stopVelocity: 0.5 minAcceleration: 0 maxAcceleration: 1000 stopAcceleration: 0.5 moveEffectEnabled: true openEffectEnabled: false closeEffectEnabled: false moveWobble: true resizeWobble: true slide: screenshot: minimizeanimation: desktopgrid: zoomDuration: 300 border: 10 desktopNameAlignment: 0 layoutMode: 0 customLayoutRows: 2 usePresentWindows: true colorpicker: presentwindows: layoutMode: 0 showCaptions: true showIcons: true doNotCloseWindows: false ignoreMinimized: false accuracy: 20 fillGaps: true fadeDuration: 150 showPanel: false leftButtonWindow: 1 rightButtonWindow: 2 middleButtonWindow: 0 leftButtonDesktop: 2 middleButtonDesktop: 0 rightButtonDesktop: 0 highlightwindow: blur: blurRadius: 12 cacheTexture: true contrast: startupfeedback: type: 3 screenedge: kscreen:
It has happened again this is the info with it the issue happening:KWin Support Information: The following information should be used when requesting support on e.g. http://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 http://paste.kde.org instead of pasting into support threads. ========================== Version ======= KWin version: 5.12.5 Qt Version: 5.9.5 Qt compile version: 5.9.5 XCB compile version: 1.13 Operation Mode: X11 only Build Options ============= KWIN_BUILD_DECORATIONS: yes KWIN_BUILD_TABBOX: yes KWIN_BUILD_ACTIVITIES: yes HAVE_INPUT: yes HAVE_DRM: yes HAVE_GBM: yes HAVE_X11_XCB: yes HAVE_EPOXY_GLX: yes HAVE_WAYLAND_EGL: yes X11 === Vendor: The X.Org Foundation Vendor Release: 11906000 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: Blur: 0 onAllDesktopsAvailable: true alphaChannelSupported: true closeOnDoubleClickOnMenu: false decorationButtonsLeft: 0, 2 decorationButtonsRight: 6, 3, 4, 5 borderSize: 3 gridUnit: 10 font: Noto Sans,10,-1,0,50,0,0,0,0,0,Regular smallSpacing: 2 largeSpacing: 10 Platform ========== Name: KWin::X11StandalonePlatform Options ======= focusPolicy: 0 nextFocusPrefersMouse: false clickRaise: true autoRaise: false autoRaiseInterval: 0 delayFocusInterval: 0 shadeHover: false shadeHoverInterval: 250 separateScreenFocus: false placement: 4 focusPolicyIsReasonable: true borderSnapZone: 10 windowSnapZone: 10 centerSnapZone: 0 snapOnlyWhenOverlapping: false rollOverDesktops: true focusStealingPreventionLevel: 1 legacyFullscreenSupport: false operationTitlebarDblClick: 5000 operationMaxButtonLeftClick: 5000 operationMaxButtonMiddleClick: 5015 operationMaxButtonRightClick: 5014 commandActiveTitlebar1: 0 commandActiveTitlebar2: 30 commandActiveTitlebar3: 2 commandInactiveTitlebar1: 4 commandInactiveTitlebar2: 30 commandInactiveTitlebar3: 2 commandWindow1: 7 commandWindow2: 8 commandWindow3: 8 commandWindowWheel: 31 commandAll1: 10 commandAll2: 3 commandAll3: 14 keyCmdAllModKey: 16777251 showGeometryTip: false condensedTitle: false electricBorderMaximize: true electricBorderTiling: true electricBorderCornerRatio: 0.25 borderlessMaximizedWindows: false killPingTimeout: 5000 hideUtilityWindowsForInactive: true inactiveTabsSkipTaskbar: false autogroupSimilarWindows: false autogroupInForeground: true compositingMode: 1 useCompositing: true compositingInitialized: true hiddenPreviews: 1 glSmoothScale: 2 xrenderSmoothScale: false maxFpsInterval: 16666666 refreshRate: 0 vBlankTime: 6000000 glStrictBinding: false glStrictBindingFollowsDriver: true glCoreProfile: false glPreferBufferSwap: 99 glPlatformInterface: 1 windowsBlockCompositing: true Screen Edges ============ desktopSwitching: false desktopSwitchingMovingClients: false cursorPushBackDistance: 1x1 timeThreshold: 150 reActivateThreshold: 350 actionTopLeft: 0 actionTop: 0 actionTopRight: 0 actionRight: 0 actionBottomRight: 0 actionBottom: 0 actionBottomLeft: 0 actionLeft: 0 Screens ======= Multi-Head: no Active screen follows mouse: no Number of Screens: 1 Screen 0: --------- Name: HDMI-0 Geometry: 0,0,1920x1080 Scale: 1 Refresh Rate: 60 Compositing =========== Compositing is active Compositing Type: OpenGL OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce GTX 1060 6GB/PCIe/SSE2 OpenGL version string: 4.6.0 NVIDIA 390.48 OpenGL platform interface: GLX OpenGL shading language version string: 4.60 NVIDIA Driver: NVIDIA Driver version: 390.48 GPU class: Unknown OpenGL version: 4.6 GLSL version: 4.60 X server version: 1.19.6 Linux kernel version: 4.15 Direct rendering: Requires strict binding: no GLSL shaders: yes Texture NPOT support: yes Virtual Machine: no OpenGL 2 Shaders are used Painting blocks for vertical retrace: yes Loaded Effects: --------------- zoom kwin4_effect_frozenapp kwin4_effect_logout kwin4_effect_dialogparent kwin4_effect_maximize kwin4_effect_login kwin4_effect_windowaperture kwin4_effect_fade kwin4_effect_translucency kwin4_effect_morphingpopups slidingpopups wobblywindows slide screenshot minimizeanimation desktopgrid colorpicker presentwindows highlightwindow blur contrast startupfeedback screenedge kscreen Currently Active Effects: ------------------------- blur contrast Effect Settings: ---------------- zoom: zoomFactor: 1.2 mousePointer: 0 mouseTracking: 0 enableFocusTracking: false followFocus: true focusDelay: 350 moveFactor: 20 targetZoom: 1 kwin4_effect_frozenapp: kwin4_effect_logout: kwin4_effect_dialogparent: kwin4_effect_maximize: kwin4_effect_login: kwin4_effect_windowaperture: kwin4_effect_fade: kwin4_effect_translucency: kwin4_effect_morphingpopups: slidingpopups: fadeInTime: 150 fadeOutTime: 250 wobblywindows: stiffness: 0.15 drag: 0.8 moveFactor: 0.1 xTesselation: 20 yTesselation: 20 minVelocity: 0 maxVelocity: 1000 stopVelocity: 0.5 minAcceleration: 0 maxAcceleration: 1000 stopAcceleration: 0.5 moveEffectEnabled: true openEffectEnabled: false closeEffectEnabled: false moveWobble: true resizeWobble: true slide: screenshot: minimizeanimation: desktopgrid: zoomDuration: 300 border: 10 desktopNameAlignment: 0 layoutMode: 0 customLayoutRows: 2 usePresentWindows: true colorpicker: presentwindows: layoutMode: 0 showCaptions: true showIcons: true doNotCloseWindows: false ignoreMinimized: false accuracy: 20 fillGaps: true fadeDuration: 150 showPanel: false leftButtonWindow: 1 rightButtonWindow: 2 middleButtonWindow: 0 leftButtonDesktop: 2 middleButtonDesktop: 0 rightButtonDesktop: 0 highlightwindow: blur: blurRadius: 12 cacheTexture: true contrast: startupfeedback: type: 3 screenedge: kscreen: It happened after opening and closing Euro Truck Simulator 2 a game on steam.
Please try to disable the option that windows are allowed to block compositing
User never responded to last suggestion. Resolving to works for me.