Created attachment 161974 [details] Example of problem SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. Open jpg file or create new document larger than 2000x2000 px. 2. Crop it to smaller. 3. Resize and drag canvas in view OBSERVED RESULT Broken canvas with transparent grid artefacts. EXPECTED RESULT Just crop of image. SOFTWARE/OS VERSIONS Windows: macOS: Sonoma 14.0 Apple M1 Pro Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Hi, Vyacheslav! Could you check two things? 1) What happens if you save the image (into a backup location!) and open it again? Do the artifacts persist? 2) Could you also check if you have Canvas Graphics Acceleration enabled in Krita settings or not? I have a feeling like this bug might be related to bug 452854...
Mark as waiting for info
The bug might also be related to bug 398689
(In reply to Dmitry Kazakov from comment #1) > Hi, Vyacheslav! > > Could you check two things? > > 1) What happens if you save the image (into a backup location!) and open it > again? Do the artifacts persist? > 2) Could you also check if you have Canvas Graphics Acceleration enabled in > Krita settings or not? > > I have a feeling like this bug might be related to bug 452854... 1) When i save image and open it again, all ok (is no artifacts). BTW to remove artefacts need just make layer hide and visible again. 2) Canvas Graphics Acceleration - enabled
Hi, Vyacheslav! If you disable Canvas Graphics Acceleration, do you still have the bug? Could you please also attach the info from Help->System Information?
(In reply to Dmitry Kazakov from comment #5) > Hi, Vyacheslav! > > If you disable Canvas Graphics Acceleration, do you still have the bug? > > Could you please also attach the info from Help->System Information? If Canvas Graphics Acceleration disabled looks like all ok. Krita Version: 5.1.5 Hidpi: true Qt Version (compiled): 5.12.12 Version (loaded): 5.12.12 OS Information Build ABI: arm64-little_endian-lp64 Build CPU: arm64 CPU: arm64 Kernel Type: darwin Kernel Version: 23.0.0 Pretty Productname: macOS 14.0 Product Type: osx Product Version: 14.0 Locale Languages: en_RU C locale: C QLocale current: en QLocale system: en QTextCodec for locale: UTF-8 OpenGL Info Vendor: "Apple" Renderer: "Apple M1 Pro" Version: "4.1 Metal - 86" Shading language: "4.10" Requested format: QSurfaceFormat(version 3.2, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::CoreProfile) Current format: QSurfaceFormat(version 4.1, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 32, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples 0, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::CoreProfile) Version: 4.1 Supports deprecated functions false is OpenGL ES: false supportsBufferMapping: true supportsBufferInvalidation: false forceDisableTextureBuffers: false Extensions: "GL_ARB_gpu_shader_fp64" "GL_ARB_texture_gather" "GL_EXT_framebuffer_multisample_blit_scaled" "GL_ARB_texture_rgb10_a2ui" "GL_EXT_debug_label" "GL_ARB_separate_shader_objects" "GL_ARB_shader_subroutine" "GL_APPLE_client_storage" "GL_EXT_texture_filter_anisotropic" "GL_ARB_texture_swizzle" "GL_APPLE_row_bytes" "GL_ARB_sample_shading" "GL_EXT_texture_compression_s3tc" "GL_ARB_explicit_attrib_location" "GL_ARB_instanced_arrays" "GL_ARB_tessellation_shader" "GL_ARB_gpu_shader5" "GL_APPLE_container_object_shareable" "GL_ARB_texture_buffer_object_rgb32" "GL_ARB_vertex_attrib_64bit" "GL_ARB_draw_buffers_blend" "GL_APPLE_flush_render" "GL_EXT_debug_marker" "GL_ARB_ES2_compatibility" "GL_NV_texture_barrier" "GL_ARB_draw_indirect" "GL_ARB_internalformat_query" "GL_ARB_timer_query" "GL_ARB_sampler_objects" "GL_APPLE_rgb_422" "GL_ARB_transform_feedback2" "GL_ARB_transform_feedback3" "GL_ARB_occlusion_query2" "GL_APPLE_texture_range" "GL_ARB_vertex_type_2_10_10_10_rev" "GL_ARB_texture_storage" "GL_EXT_texture_sRGB_decode" "GL_ARB_viewport_array" "GL_ARB_shader_bit_encoding" "GL_ARB_texture_query_lod" "GL_ARB_blend_func_extended" "GL_ARB_texture_cube_map_array" "GL_ARB_shading_language_include" QPA OpenGL Detection Info supportsDesktopGL: true supportsOpenGLES: false isQtPreferOpenGLES: false useBufferInvalidation (config option): false Hardware Information GPU Acceleration: desktop Memory: 16384 Mb Number of Cores: 8 Swap Location: /private/var/folders/3k/cfbb23wj4973b38bqbs_n1z00000gn/T Built for: arm64+neon Base instruction set: arm64+neon Supported instruction sets: arm64+neon arm32+neon avx512bw avx512dq avx512cd avx512f fma3+avx2 avx2 fma3+avx avx fma4 fma3+sse4.2 sse4.2 sse4.1 ssse3 sse3 sse2 Current Settings Current Swap Location: /private/var/folders/3k/cfbb23wj4973b38bqbs_n1z00000gn/T Current Swap Location writable: true Undo Enabled: true Undo Stack Limit: 200 Use OpenGL: true Use OpenGL Texture Buffer: true Disable Vector Optimizations: false Disable AVX Optimizations: false Canvas State: OPENGL_SUCCESS Autosave Interval: 420 Use Backup Files: true Number of Backups Kept: 1 Backup File Suffix: ~ Backup Location: Same Folder as the File Backup Location writable: false Resource Location: /Users/slava/Library/Application Support/krita Use Win8 Pointer Input: false Use RightMiddleTabletButton Workaround: false Levels of Detail Enabled: false Use Zip64: false Loaded Python Plugins colorspace comics_project_management_tools documenttools exportlayers filtermanager lastdocumentsdocker plugin_importer quick_settings_docker scripter tenbrushes tenscripts Display Information Number of screens: 2 Screen: 0 Name: Depth: 24 Scale: 2 Physical DPI89.75 Logical DPI72 Physical Size: 600.569, 339.707 Position: 0, 0 Resolution in pixels: 2128x1197 Manufacturer: Model: Refresh Rate: 75 Screen: 1 Name: Depth: 24 Scale: 2 Physical DPI127.5 Logical DPI72 Physical Size: 301.214, 195.63 Position: 304, 1197 Resolution in pixels: 1512x982 Manufacturer: Model: Refresh Rate: 120 Current Settings Current Swap Location: /private/var/folders/3k/cfbb23wj4973b38bqbs_n1z00000gn/T Current Swap Location writable: true Undo Enabled: true Undo Stack Limit: 200 Use OpenGL: false Use OpenGL Texture Buffer: true Disable Vector Optimizations: false Disable AVX Optimizations: false Canvas State: OPENGL_SUCCESS Autosave Interval: 420 Use Backup Files: true Number of Backups Kept: 1 Backup File Suffix: ~ Backup Location: Same Folder as the File Backup Location writable: false Resource Location: /Users/slava/Library/Application Support/krita Use Win8 Pointer Input: false Use RightMiddleTabletButton Workaround: false Levels of Detail Enabled: false Use Zip64: false Current Settings Current Swap Location: /private/var/folders/3k/cfbb23wj4973b38bqbs_n1z00000gn/T Current Swap Location writable: true Undo Enabled: true Undo Stack Limit: 200 Use OpenGL: false Use OpenGL Texture Buffer: true Disable Vector Optimizations: false Disable AVX Optimizations: false Canvas State: OPENGL_SUCCESS Autosave Interval: 420 Use Backup Files: true Number of Backups Kept: 1 Backup File Suffix: ~ Backup Location: Same Folder as the File Backup Location writable: false Resource Location: /Users/slava/Library/Application Support/krita Use Win8 Pointer Input: false Use RightMiddleTabletButton Workaround: false Levels of Detail Enabled: false Use Zip64: false
Hi, Vyacheslav! Could you please check one more thing for me? What happens if you do the following: 1) Enable Canvas Graphics Acceleration 2) Disable "Use texture buffers" option 3) Restart Krita Does it "fix" the bug?
*** This bug has been marked as a duplicate of bug 398689 ***