https://bugs.kde.org/show_bug.cgi?id=416894
--- Comment #5 from Ahab Greybeard <ahab.greybe...@hotmail.co.uk> --- Are your monitors identical? Are there any OS level utilities and controls whose settings could have an effect on this? (Right-click on desktop then Display Settings.) (I rarely use Windows nowadays so I've lost familiarity with it.) I forgot to add my system information but I don't know if it would be of any help to anyone in solving this problem: Krita Version: 4.3.0-prealpha (git 0657457) Languages: en_US, en Hidpi: false Qt Version (compiled): 5.12.5 Version (loaded): 5.12.5 OS Information Build ABI: x86_64-little_endian-llp64 Build CPU: x86_64 CPU: x86_64 Kernel Type: winnt Kernel Version: 10.0.16299 Pretty Productname: Windows 10 (10.0) Product Type: windows Product Version: 10 OpenGL Info Vendor: "NVIDIA Corporation" Renderer: "GeForce GTX 750 Ti/PCIe/SSE2" Version: "4.6.0 NVIDIA 388.13" Shading language: "4.60 NVIDIA" Requested format: QSurfaceFormat(version 3.0, options QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::CompatibilityProfile) Current format: QSurfaceFormat(version 4.6, options QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples 0, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 1, colorSpace QSurfaceFormat::sRGBColorSpace, profile QSurfaceFormat::CompatibilityProfile) Version: 4.6 Supports deprecated functions true is OpenGL ES: false QPA OpenGL Detection Info supportsDesktopGL: true supportsAngleD3D11: true isQtPreferAngle: false Hardware Information GPU Acceleration: auto Memory: 16381 Mb Number of Cores: 8 Swap Location: /tmp Current Settings Current Swap Location: /tmp Undo Enabled: 1 Undo Stack Limit: 20 Use OpenGL: 1 Use OpenGL Texture Buffer: 1 Use AMD Vectorization Workaround: 0 Canvas State: OPENGL_SUCCESS Autosave Interval: 360 Use Backup Files: 1 Number of Backups Kept: 1 Backup File Suffix: ~ Backup Location: Same Folder as the File Use Win8 Pointer Input: 1 Use RightMiddleTabletButton Workaround: 0 Levels of Detail Enabled: 1 Use Zip64: 0 Display Information Number of screens: 2 Screen: 0 Name: \\.\DISPLAY2 Depth: 32 Scale: 1 Resolution in pixels: 1280x1024 Manufacturer: Model: Refresh Rate: 60 Screen: 1 Name: \\.\DISPLAY1 Depth: 32 Scale: 1 Resolution in pixels: 1280x1024 Manufacturer: Model: Refresh Rate: 60 -- You are receiving this mail because: You are watching all bug changes.