https://bugs.kde.org/show_bug.cgi?id=449424
Bug ID: 449424
Summary: If I use the v key to make lines, krita randomly
creates white blocks on the canvas like large merged
pixels
Product: krita
Version: 5.0.2
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: General
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
***
If I use the v key to make lines krita randomly creates white blocks on the
canvas like large merged pixels. This is very random and hard to reproduce but
very annoying and it breaks the background on which the lines are painted.
These random white squares can later be filled with color with the bucket fill
tool.
***
STEPS TO REPRODUCE
1. use the default krita startup file.
2. On the "background layer" choose a dark color and fill the background of
the canvas
3. choose a brush I have tested with the "Basic-5 Size" brush and the "Basic-1
brush"
4. press the "v" key and randomly keep drawing lines.
OBSERVED RESULT
The lines will draw fine on the canvas but suddenly at random roughly around
the endpoint a patch of white will appear on the canvas replacing the dark blue
of the background with a white patch. This is very random. Sometimes undoing
can exacerbate the issue. Sometimes it never happens. It is very annoying
because it deletes the previously painted pixels and replaces them with these
patchy white rectangles. If I further use the fill tool on this patches it
replaces the white patched with the fill color. Sometimes drawing over the area
where these patches appeared would change the patches slightly.
I have made a video to demonstrate this problem because I am struggling to find
a reliable trigger. Please view it at the below link:
https://drive.google.com/file/d/1qVz-BZcLno4Y5GBnCp5DN5u_rb7y0z0f/view?usp=sharing
(see ~42 secinds for the first artifact)
EXPECTED RESULT
The line should composite with the background correctly no random patches
should appear.
Krita
Version: 5.0.2
Languages: en_IN, en, en, en_IN, en
Hidpi: true
Qt
Version (compiled): 5.12.12
Version (loaded): 5.12.12
OS Information
Build ABI: x86_64-little_endian-lp64
Build CPU: x86_64
CPU: x86_64
Kernel Type: linux
Kernel Version: 5.4.0-96-generic
Pretty Productname: Ubuntu 20.04.3 LTS
Product Type: ubuntu
Product Version: 20.04
Desktop: KDE
OpenGL Info
Vendor: "Intel"
Renderer: "Mesa Intel(R) UHD Graphics 620 (KBL GT2)"
Version: "4.6 (Compatibility Profile) Mesa 21.0.3"
Shading language: "4.60"
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 -1, swapBehavior QSurfaceFormat::DoubleBuffer,
swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile
QSurfaceFormat::CompatibilityProfile)
Version: 4.6
Supports deprecated functions true
is OpenGL ES: false
supportsBufferMapping: true
supportsBufferInvalidation: true
Extensions:
"GL_NV_primitive_restart"
"GL_EXT_texture_integer"
"GL_IBM_rasterpos_clip"
"GL_ARB_ES2_compatibility"
"GL_ARB_shader_image_size"
"GL_ARB_transform_feedback2"
"GL_SUN_multi_draw_arrays"
"GL_EXT_texture_snorm"
"GL_EXT_gpu_program_parameters"
"GL_ARB_conditional_render_inverted"
"GL_ARB_occlusion_query2"
"GL_ARB_shader_texture_lod"
"GL_ARB_shader_precision"
"GL_AMD_performance_monitor"
"GL_INGR_blend_func_separate"
"GL_EXT_shadow_funcs"
"GL_ARB_texture_storage_multisample"
"GL_NV_copy_image"
"GL_ARB_texture_buffer_object_rgb32"
"GL_EXT_vertex_attrib_64bit"
"GL_EXT_semaphore_fd"
"GL_EXT_packed_pixels"
"GL_EXT_texture_shadow_lod"
"GL_ARB_query_buffer_object"
"GL_MESA_pack_invert"
"GL_EXT_abgr"
"GL_AMD_shader_trinary_minmax"
"GL_EXT_pixel_buffer_object"
"GL_EXT_direct_state_access"
"GL_NV_packed_depth_stencil"
"GL_EXT_texture_filter_anisotropic"
"GL_ARB_multi_draw_indirect"
"GL_EXT_texture_compression_dxt1"
"GL_EXT_blend_equation_separate"
"GL_ARB_framebuffer_object"
"GL_NV_compute_shader_derivatives"
"GL_EXT_vertex_array_bgra"
"GL_EXT_copy_texture"
"GL_ARB_vertex_attrib_64bit"
"GL_ARB_blend_func_extended"
"GL_ARB_internalformat_query2"
"GL_EXT_timer_query"
"GL_ARB_occlusion_query"
"GL_ARB_shadow"
"GL_ARB_copy_image"
"GL_ARB_explicit_attrib_location"
"GL_ARB_texture_non_power_of_two"
"GL_3DFX_texture_compression_FXT1"
"GL_EXT_shader_framebuffer_fetch"
"GL_EXT_texture_cube_map"
"GL_EXT_transform_feedback"
"GL_EXT_texture3D"
"GL_ATI_blend_equation_separate"
"GL_EXT_packed_float"
"GL_ARB_color_buffer_float"
"GL_ATI_fragment_shader"
"GL_S3_s3tc"
"GL_ARB_depth_buffer_float"
"GL_EXT_rescale_normal"
"GL_ARB_get_program_binary"
"GL_EXT_shader_framebuffer_fetch_non_coherent"
"GL_ARB_texture_buffer_range"
"GL_EXT_texture_env_combine"
"GL_EXT_texture_shared_exponent"
"GL_ARB_texture_env_combine"
"GL_ATI_separate_stencil"
"GL_ARB_draw_instanced"
"GL_EXT_draw_range_elements"
"GL_INTEL_blackhole_render"
"GL_NV_blend_square"
"GL_ARB_debug_output"
"GL_ARB_seamless_cube_map"
"GL_IBM_multimode_draw_arrays"
"GL_ARB_shading_language_include"
"GL_ARB_vertex_type_10f_11f_11f_rev"
"GL_ARB_texture_rgb10_a2ui"
"GL_ARB_internalformat_query"
"GL_ARB_fragment_layer_viewport"
"GL_EXT_subtexture"
"GL_ARB_texture_border_clamp"
"GL_ARB_texture_buffer_object"
"GL_ARB_shading_language_420pack"
"GL_EXT_texture_sRGB_decode"
"GL_ARB_texture_gather"
"GL_ARB_texture_rg"
"GL_EXT_texture_env_dot3"
"GL_ARB_sync"
"GL_ARB_get_texture_sub_image"
"GL_ATI_texture_env_combine3"
"GL_AMD_shader_stencil_export"
"GL_EXT_shader_samples_identical"
"GL_ARB_viewport_array"
"GL_NV_conditional_render"
"GL_ARB_timer_query"
"GL_ARB_vertex_attrib_binding"
"GL_EXT_texture"
"GL_KHR_context_flush_control"
"GL_EXT_EGL_sync"
"GL_EXT_texture_object"
"GL_ARB_texture_storage"
"GL_NV_texture_barrier"
"GL_MESA_framebuffer_flip_y"
"GL_EXT_gpu_shader4"
"GL_EXT_texture_sRGB"
"GL_EXT_blend_color"
"GL_ARB_seamless_cubemap_per_texture"
"GL_KHR_blend_equation_advanced_coherent"
"GL_EXT_fog_coord"
"GL_OES_EGL_image"
"GL_ARB_clear_buffer_object"
"GL_ARB_window_pos"
"GL_EXT_secondary_color"
"GL_ARB_polygon_offset_clamp"
"GL_ARB_half_float_vertex"
"GL_ARB_texture_swizzle"
"GL_EXT_stencil_two_side"
"GL_ARB_framebuffer_sRGB"
"GL_ARB_draw_buffers"
"GL_NV_copy_depth_to_color"
"GL_ARB_transpose_matrix"
"GL_ARB_texture_float"
"GL_ARB_shader_atomic_counters"
"GL_ARB_map_buffer_range"
"GL_ARB_uniform_buffer_object"
"GL_ARB_transform_feedback_overflow_query"
"GL_ARB_shader_group_vote"
"GL_AMD_vertex_shader_layer"
"GL_SGIS_texture_border_clamp"
"GL_EXT_bgra"
"GL_ARB_shader_bit_encoding"
"GL_ARB_instanced_arrays"
"GL_INTEL_shader_atomic_float_minmax"
"GL_ARB_shading_language_100"
"GL_ARB_separate_shader_objects"
"GL_EXT_vertex_array"
"GL_ARB_transform_feedback_instanced"
"GL_ARB_shader_texture_image_samples"
"GL_MESA_shader_integer_functions"
"GL_ARB_gpu_shader_int64"
"GL_EXT_separate_specular_color"
"GL_ARB_texture_query_levels"
"GL_SGIS_texture_edge_clamp"
"GL_ARB_direct_state_access"
"GL_KHR_parallel_shader_compile"
"GL_KHR_robust_buffer_access_behavior"
"GL_ARB_depth_clamp"
"GL_ARB_vertex_program"
"GL_ARB_ES3_compatibility"
"GL_ANGLE_texture_compression_dxt3"
"GL_ARB_draw_buffers_blend"
"GL_ANGLE_texture_compression_dxt5"
"GL_ARB_fragment_program"
"GL_ARB_multisample"
"GL_ARB_program_interface_query"
"GL_ARB_compute_shader"
"GL_ARB_compatibility"
"GL_EXT_packed_depth_stencil"
"GL_ARB_fragment_shader"
"GL_SGIS_texture_lod"
"GL_AMD_seamless_cubemap_per_texture"
"GL_AMD_pinned_memory"
"GL_ARB_post_depth_coverage"
"GL_APPLE_packed_pixels"
"GL_EXT_framebuffer_object"
"GL_ARB_texture_multisample"
"GL_ARB_ES3_1_compatibility"
"GL_KHR_blend_equation_advanced"
"GL_EXT_texture_lod_bias"
"GL_EXT_stencil_wrap"
"GL_ARB_vertex_buffer_object"
"GL_ARB_texture_env_dot3"
"GL_ARB_shader_ballot"
"GL_ARB_fragment_shader_interlock"
"GL_ARB_texture_stencil8"
"GL_ARB_sampler_objects"
"GL_ARB_indirect_parameters"
"GL_ARB_clear_texture"
"GL_EXT_polygon_offset_clamp"
"GL_ARB_gl_spirv"
"GL_KHR_robustness"
"GL_EXT_texture_compression_s3tc"
"GL_AMD_query_buffer_object"
"GL_AMD_texture_texture4"
"GL_ARB_texture_cube_map"
"GL_INTEL_shader_integer_functions2"
"GL_ARB_texture_env_crossbar"
"GL_EXT_draw_buffers2"
"GL_EXT_EGL_image_storage"
"GL_EXT_shader_integer_mix"
"GL_ARB_provoking_vertex"
"GL_ARB_shader_atomic_counter_ops"
"GL_ARB_tessellation_shader"
"GL_NV_depth_clamp"
"GL_EXT_compiled_vertex_array"
"GL_ARB_base_instance"
"GL_ARB_invalidate_subdata"
"GL_ARB_shader_draw_parameters"
"GL_AMD_vertex_shader_viewport_index"
"GL_ARB_half_float_pixel"
"GL_EXT_texture_sRGB_R8"
"GL_ARB_cull_distance"
"GL_ARB_copy_buffer"
"GL_ARB_texture_compression_bptc"
"GL_OES_read_format"
"GL_ARB_texture_env_add"
"GL_ARB_stencil_texturing"
"GL_ARB_framebuffer_no_attachments"
"GL_EXT_framebuffer_blit"
"GL_EXT_framebuffer_multisample"
"GL_ARB_shader_clock"
"GL_ARB_sample_shading"
"GL_AMD_conservative_depth"
"GL_KHR_texture_compression_astc_sliced_3d"
"GL_NV_fog_distance"
"GL_ARB_texture_compression"
"GL_AMD_multi_draw_indirect"
"GL_ARB_texture_barrier"
"GL_ARB_texture_mirrored_repeat"
"GL_EXT_texture_env_add"
"GL_ARB_derivative_control"
"GL_ARB_point_sprite"
"GL_ARB_vertex_shader"
"GL_KHR_texture_compression_astc_ldr"
"GL_ARB_compressed_texture_pixel_storage"
"GL_ARB_depth_texture"
"GL_ARB_fragment_coord_conventions"
"GL_EXT_framebuffer_sRGB"
"GL_ARB_pipeline_statistics_query"
"GL_NV_texture_rectangle"
"GL_NV_light_max_exponent"
"GL_ARB_gpu_shader_fp64"
"GL_EXT_blend_func_separate"
"GL_ARB_robustness"
"GL_ARB_transform_feedback3"
"GL_EXT_demote_to_helper_invocation"
"GL_AMD_draw_buffers_blend"
"GL_ARB_texture_cube_map_array"
"GL_KHR_debug"
"GL_ARB_draw_elements_base_vertex"
"GL_ARB_clip_control"
"GL_KHR_no_error"
"GL_ARB_texture_rectangle"
"GL_EXT_draw_instanced"
"GL_ARB_arrays_of_arrays"
"GL_ARB_vertex_type_2_10_10_10_rev"
"GL_ARB_conservative_depth"
"GL_EXT_point_parameters"
"GL_ARB_texture_view"
"GL_ATI_draw_buffers"
"GL_ARB_texture_compression_rgtc"
"GL_ARB_parallel_shader_compile"
"GL_EXT_texture_rectangle"
"GL_ATI_texture_float"
"GL_ARB_gpu_shader5"
"GL_EXT_texture_buffer_object"
"GL_ARB_compute_variable_group_size"
"GL_ARB_spirv_extensions"
"GL_MESA_texture_signed_rgba"
"GL_ARB_robust_buffer_access_behavior"
"GL_ARB_vertex_array_bgra"
"GL_ARB_multitexture"
"GL_ARB_shader_subroutine"
"GL_EXT_texture_compression_rgtc"
"GL_EXT_provoking_vertex"
"GL_NV_texgen_reflection"
"GL_ARB_buffer_storage"
"GL_ARB_shading_language_packing"
"GL_ARB_shader_image_load_store"
"GL_EXT_texture_edge_clamp"
"GL_IBM_texture_mirrored_repeat"
"GL_ARB_draw_indirect"
"GL_ARB_shader_stencil_export"
"GL_ARB_multi_bind"
"GL_ARB_enhanced_layouts"
"GL_ARB_shader_objects"
"GL_ARB_shader_storage_buffer_object"
"GL_ARB_texture_query_lod"
"GL_ARB_map_buffer_alignment"
"GL_NV_fragment_shader_interlock"
"GL_EXT_blend_subtract"
"GL_INTEL_performance_query"
"GL_ARB_texture_filter_anisotropic"
"GL_EXT_texture_array"
"GL_EXT_texture_swizzle"
"GL_EXT_semaphore"
"GL_EXT_blend_minmax"
"GL_EXT_multi_draw_arrays"
"GL_EXT_framebuffer_multisample_blit_scaled"
"GL_ARB_fragment_program_shadow"
"GL_MESA_window_pos"
"GL_ARB_explicit_uniform_location"
"GL_NV_half_float"
"GL_AMD_depth_clamp_separate"
"GL_SGIS_generate_mipmap"
"GL_ARB_shader_viewport_layer_array"
"GL_NV_texture_env_combine4"
"GL_ARB_point_parameters"
"GL_ARB_texture_mirror_clamp_to_edge"
"GL_ARB_vertex_array_object"
"GL_ARB_pixel_buffer_object"
QPA OpenGL Detection Info
supportsDesktopGL: true
supportsOpenGLES: true
isQtPreferOpenGLES: false
useBufferInvalidation (config option): false
Hardware Information
GPU Acceleration: auto
Memory: 7761 Mb
Number of Cores: 8
Swap Location: /tmp
Current Settings
Current Swap Location: /tmp
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
Use Win8 Pointer Input: false
Use RightMiddleTabletButton Workaround: false
Levels of Detail Enabled: false
Use Zip64: false
Display Information
Number of screens: 1
Screen: 0
Name: HDMI-1
Depth: 24
Scale: 1
Resolution in pixels: 1920x1080
Manufacturer: Dell Inc.
Model: DELL S2216H-
Refresh Rate: 60
ADDITIONAL INFORMATION
--
You are receiving this mail because:
You are watching all bug changes.
