Assigned shortcuts to some desktop effects, like desktop grid or window presentation, stop working correctly after an HDMI unplug event. For instance, pressing CTRL-F8 shows the desktop grid, and from there, pressing again CTRL-F8 brings back the desktop view. My environment: Kwin 5.8.7-2.1, openSUSE 42.3 To reproduce the issue : - plug in an external screen (HDMI as far as I could test) - unplug it - press CTRL-F8 : the desktop grid is shown - press CTRL-F8 again : nothing happens It has 100% reproducibility in my environment. The workaround so far is to reload kwin after every occurrence of this issue:
please provide the output of: qdbus org.kde.KWin /KWin supportInformation when the issue is present.
Created attachment 109725 [details] Kwin
Here it is, thanks.
Version ======= KWin version: 5.8.7 Qt Version: 5.6.2 Qt compile version: 5.6.2 XCB compile version: 1.11.1 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: no HAVE_X11_XCB: yes HAVE_EPOXY_GLX: yes HAVE_WAYLAND_EGL: no X11 === Vendor: The X.Org Foundation Vendor Release: 11803000 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.kwin.aurorae Theme: __aurorae__svg__Breezemite_dark Blur: 1 onAllDesktopsAvailable: true alphaChannelSupported: true closeOnDoubleClickOnMenu: false decorationButtonsLeft: 2 decorationButtonsRight: 6, 3, 4, 5 borderSize: 4 gridUnit: 10 font: Roboto,10,-1,5,75,0,0,0,0,0 smallSpacing: 2 largeSpacing: 10 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: 0 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 colorCorrected: false xrenderSmoothScale: false maxFpsInterval: 16666666 refreshRate: 0 vBlankTime: 6000000 glStrictBinding: true glStrictBindingFollowsDriver: true glCoreProfile: false glPreferBufferSwap: 101 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: yes Number of Screens: 1 Screen 0: --------- Name: eDP-1 Geometry: 0,0,1920x1080 Refresh Rate: 60.0079 Compositing =========== Compositing is active Compositing Type: OpenGL OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) OpenGL version string: 3.0 Mesa 17.0.5 OpenGL platform interface: GLX OpenGL shading language version string: 1.30 Driver: Intel GPU class: Unknown OpenGL version: 3.0 GLSL version: 1.30 Mesa version: 17.0.5 X server version: 1.18.3 Linux kernel version: 4.4.104 Direct rendering: Requires strict binding: yes GLSL shaders: yes Texture NPOT support: yes Virtual Machine: no OpenGL 2 Shaders are used Painting blocks for vertical retrace: no Loaded Effects: --------------- zoom dimscreen slidingpopups kwin4_effect_login slide screenshot kwin4_effect_windowaperture minimizeanimation kwin4_effect_translucency flipswitch desktopgrid coverswitch kwin4_effect_morphingpopups kwin4_effect_maximize kwin4_effect_fade presentwindows highlightwindow kwin4_effect_dialogparent 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 dimscreen: slidingpopups: fadeInTime: 75 fadeOutTime: 125 kwin4_effect_login: slide: screenshot: kwin4_effect_windowaperture: minimizeanimation: kwin4_effect_translucency: flipswitch: tabBox: false tabBoxAlternative: false duration: 100 angle: 30 xPosition: 0.33000001311302185 yPosition: 1 windowTitle: true desktopgrid: zoomDuration: 150 border: 10 desktopNameAlignment: 0 layoutMode: 0 customLayoutRows: 2 usePresentWindows: false coverswitch: animationDuration: 100 animateSwitch: true animateStart: true animateStop: true reflection: true windowTitle: true zPosition: 900 primaryTabBox: false secondaryTabBox: false kwin4_effect_morphingpopups: kwin4_effect_maximize: kwin4_effect_fade: presentwindows: layoutMode: 0 showCaptions: true showIcons: true doNotCloseWindows: false ignoreMinimized: true accuracy: 20 fillGaps: true fadeDuration: 75 showPanel: false leftButtonWindow: 1 rightButtonWindow: 2 middleButtonWindow: 0 leftButtonDesktop: 2 middleButtonDesktop: 0 rightButtonDesktop: 0 highlightwindow: kwin4_effect_dialogparent: blur: blurRadius: 12 cacheTexture: true contrast: startupfeedback: type: 3 screenedge: kscreen:
From support information everything looks fine. What about other global shortcuts? Are they still working? Any other where you notice differences?
Yes, I use quite a lot of shortcuts intensively and they all work well. Only the second use of these gets ignored.
And just shortcuts of KWin or are also other applications affected?
Only kwin, no other shortcut. I just noticed that if I plug the HDMI screen back, the shortcut works again. And if I unplug it once more time, again stop working.
I realized that: - after entering the desktop grid / windows views, the keyboard stops working. All keys are ignored: ESC to exit, arrows to select other windows or desktops, etc. So it is not only the shortcut like I stated in my first report. - it can always been reproduced after unplugging the HDMI screen. - if I re-plug the HDMI right after, without any things else, the keys are again magically recognized. If it gets too messy, confusing, I can close this and reopen a new issue. And if a video or something like that can help, let me know.
Fix in Qt 5.9.0 and KWin 5.10.3 See qtbase: 2b34aefcf02f09253473b096eb4faffd3e62b5f4 See KWin: a6dee74ee455d1da47dd5c9d55a84adbb5e1426a The reason is that: When the screen is disconnected, The QDesktopWidget will to delete the QDesktopScreenWidget object corresponding to the screen, which will cause QXcbConnection::removeWindowEventListener to be called, and the event corresponding to the root window will no longer be processed by QXcbConnection.
I'm sorry. Also need this commit of qtbase: d7a9e08f0ada36ad8ad44651f27a76c9c74e3428 (In reply to zccrs from comment #10) > Fix in Qt 5.9.0 and KWin 5.10.3 > > See qtbase: 2b34aefcf02f09253473b096eb4faffd3e62b5f4 > See KWin: a6dee74ee455d1da47dd5c9d55a84adbb5e1426a > > The reason is that: > When the screen is disconnected, The QDesktopWidget will to delete the > QDesktopScreenWidget object corresponding to the screen, which will cause > QXcbConnection::removeWindowEventListener to be called, and the event > corresponding to the root window will no longer be processed by > QXcbConnection.