https://bugs.kde.org/show_bug.cgi?id=425264
Bug ID: 425264
Summary: Kate flickers when part of the window is outside
display borders
Product: kate
Version: 20.04.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwrite-bugs-n...@kde.org
Reporter: germano.massu...@gmail.com
Target Milestone: ---
SUMMARY
If I move a part of Kate window outside display borders, and then I insert some
new lines among a text, the text will start flickering (and Kate window too
sometimes).
As soon I bring Kate window inside display borders, everything is back to
normal.
See this video to better understand https://youtu.be/RNYV4Yonkos
SOFTWARE/OS VERSIONS
Fedora 32
Kate 20.04.1
KDE Frameworks 5.70.0
Qt 5.14.2
xcb window system
AMD Radeon RX480 with amdgpu drivers included in kernel 5.7.11-200.fc32.x86_64
4k display
$ qdbus org.kde.KWin /KWin supportInformation
Version
=======
KWin version: 5.18.5
Qt Version: 5.14.2
Qt compile version: 5.14.2
XCB compile version: 1.13.1
Operation Mode: X11 only
Build Options
=============
KWIN_BUILD_DECORATIONS: yes
KWIN_BUILD_TABBOX: yes
KWIN_BUILD_ACTIVITIES: yes
HAVE_DRM: yes
HAVE_GBM: yes
HAVE_EGL_STREAMS: yes
HAVE_X11_XCB: yes
HAVE_EPOXY_GLX: yes
HAVE_WAYLAND_EGL: yes
X11
===
Vendor: Fedora Project
Vendor Release: 12008000
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:
Plugin recommends border size: None
Blur: 0
onAllDesktopsAvailable: true
alphaChannelSupported: true
closeOnDoubleClickOnMenu: false
decorationButtonsLeft: 0, 2
decorationButtonsRight: 6, 3, 4, 5
borderSize: 0
gridUnit: 14
font: Droid Sans [1ASC],11,-1,5,50,0,0,0,0,0
smallSpacing: 3
largeSpacing: 14
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
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: 16777251
showGeometryTip: false
condensedTitle: false
electricBorderMaximize: true
electricBorderTiling: true
electricBorderCornerRatio: 0.25
borderlessMaximizedWindows: false
killPingTimeout: 5000
hideUtilityWindowsForInactive: true
compositingMode: 1
useCompositing: true
hiddenPreviews: 1
glSmoothScale: 2
xrenderSmoothScale: false
maxFpsInterval: 16666666
refreshRate: 0
vBlankTime: 6000000
glStrictBinding: true
glStrictBindingFollowsDriver: true
glCoreProfile: true
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: DP-3
Geometry: 0,0,3840x2160
Scale: 1
Refresh Rate: 59.996
Compositing
===========
Compositing is active
Compositing Type: OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: AMD Radeon (TM) RX 480 Graphics (POLARIS10, DRM 3.37.0,
5.7.11-200.fc32.x86_64, LLVM 10.0.0)
OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.1.4
OpenGL platform interface: GLX
OpenGL shading language version string: 4.60
Driver: RadeonSI
GPU class: Arctic Islands
OpenGL version: 4.6
GLSL version: 4.60
Mesa version: 20.1.4
Linux kernel version: 5.7.11
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:
---------------
kwin4_effect_sessionquit
screenshot
desktopgrid
kwin4_effect_translucency
colorpicker
kwin4_effect_frozenapp
presentwindows
kwin4_effect_dialogparent
highlightwindow
blur
contrast
startupfeedback
kscreen
Currently Active Effects:
-------------------------
blur
contrast
Effect Settings:
----------------
kwin4_effect_sessionquit:
isActiveFullScreenEffect: false
screenshot:
desktopgrid:
zoomDuration: 300
border: 10
desktopNameAlignment: 0
layoutMode: 0
customLayoutRows: 2
usePresentWindows: true
kwin4_effect_translucency:
isActiveFullScreenEffect: false
colorpicker:
kwin4_effect_frozenapp:
isActiveFullScreenEffect: false
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
kwin4_effect_dialogparent:
isActiveFullScreenEffect: false
highlightwindow:
blur:
contrast:
startupfeedback:
type: 1
kscreen:
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