I have been looking forward to this day for a long time!
I tried loading a variety of images, including the SquaresSwirls.exr image from the ACES github, but also some of my own scene-referred artwork I had done in Krita over the years, including .kra files, .exr exports of those .kra files, and Rec2100-PQ PNG files prepared from those .exr exports. None of them were able to display properly. It seems the entire “surface” (the canvas and surrounding background) is being clamped to 0.00 - 1.00 range, then the output is being scaled to my HDR brightness. I tested this by pipetting various pixels, and the colors that maxed out my monitor were always around 1.00.
I wonder if I’m experiencing the same issue that heythatsprettygood was experiencing. I do know that a recent update to either KDE Plasma or Chrome broke HDR support by clamping all values to SDR white, even though Youtube would still specify that a video was “HDR”, and Ultra HDR Gainmapped JPGs would still apply their gainmaps. Other programs like MPV, tev (image viewer), and Blender were not bothered by this change.
System Info
Krita
Version: 6.0.0-prealpha (git d514342)
Hidpi: true
Qt
Version (compiled): 6.8.0
Version (loaded): 6.8.0
OS Information
Build ABI: x86_64-little_endian-lp64
Build CPU: x86_64
CPU: x86_64
Kernel Type: linux
Kernel Version: 6.17.7-ba01.fc43.x86_64
Pretty Productname: Bazzite
Product Type: bazzite
Product Version: 43
Desktop: KDE
Appimage build: Yes
Locale
Languages: en_US, en_Latn_US, en
C locale: en_US.UTF-8
QLocale current: en
QLocale system: en
QTextCodec for locale: UTF-8
OpenGL Info
Qt Platform Name: "wayland"
Vendor: "AMD"
Renderer: "AMD Radeon RX 6800 XT (radeonsi, navi21, LLVM 21.1.4, DRM 3.64, 6.17.7-ba01.fc43.x86_64)"
Driver version: "4.6 (Core Profile) Mesa 25.2.6"
Shading language: "4.60"
Requested format: QSurfaceFormat(version 3.3, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize 10, greenBufferSize 10, blueBufferSize 10, alphaBufferSize 2, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 0, colorSpace QColorSpace(), profile QSurfaceFormat::CompatibilityProfile)
Current format: QSurfaceFormat(version 4.6, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize 10, greenBufferSize 10, blueBufferSize 10, alphaBufferSize 0, stencilBufferSize 8, samples 0, swapBehavior QSurfaceFormat::DefaultSwapBehavior, swapInterval 0, colorSpace QColorSpace(), profile QSurfaceFormat::CoreProfile)
GL version: 4.6
Supports deprecated functions false
Is OpenGL ES: false
supportsBufferMapping: true
supportsBufferInvalidation: true
forceDisableTextureBuffers: false
Extensions:
GL_AMD_shader_stencil_export
GL_ARB_draw_buffers_blend
GL_EXT_memory_object_fd
GL_ARB_ES2_compatibility
GL_ARB_shader_group_vote
GL_EXT_EGL_sync
GL_EXT_framebuffer_multisample
GL_ARB_compressed_texture_pixel_storage
GL_EXT_texture_compression_dxt1
GL_ARB_spirv_extensions
GL_ARB_vertex_array_bgra
GL_EXT_shader_clock
GL_S3_s3tc
GL_ATI_blend_equation_separate
GL_EXT_texture_sRGB_RG8
GL_IBM_multimode_draw_arrays
GL_NV_conditional_render
GL_AMD_shader_trinary_minmax
GL_ARB_fragment_shader
GL_ARB_texture_buffer_object_rgb32
GL_EXT_memory_object
GL_ARB_shader_stencil_export
GL_ARB_texture_filter_anisotropic
GL_EXT_texture_filter_minmax
GL_ANGLE_texture_compression_dxt3
GL_EXT_packed_float
GL_EXT_semaphore
GL_KHR_blend_equation_advanced
GL_ARB_texture_rg
GL_MESA_texture_signed_rgba
GL_NVX_gpu_memory_info
GL_ARB_shader_precision
GL_ARB_multi_bind
GL_ARB_texture_gather
GL_ARB_copy_buffer
GL_ARB_sparse_texture_clamp
GL_ARB_indirect_parameters
GL_ARB_transform_feedback_overflow_query
GL_ARB_texture_rgb10_a2ui
GL_EXT_framebuffer_multisample_blit_scaled
GL_EXT_texture_storage
GL_ARB_polygon_offset_clamp
GL_ARB_shader_storage_buffer_object
GL_EXT_shader_image_load_store
GL_NV_texture_barrier
GL_KHR_texture_compression_astc_ldr
GL_MESA_shader_integer_functions
GL_ARB_texture_buffer_range
GL_ARB_derivative_control
GL_ARB_shader_draw_parameters
GL_ARB_half_float_vertex
GL_ARB_texture_compression_rgtc
GL_ATI_texture_float
GL_ARB_seamless_cubemap_per_texture
GL_EXT_texture_sRGB_decode
GL_EXT_texture_shared_exponent
GL_EXT_texture_compression_s3tc
GL_ARB_ES3_1_compatibility
GL_ARB_vertex_type_10f_11f_11f_rev
GL_EXT_vertex_attrib_64bit
GL_ARB_clear_buffer_object
GL_NV_packed_depth_stencil
GL_ARB_shading_language_include
GL_ARB_draw_instanced
GL_ARB_texture_filter_minmax
GL_EXT_texture_shadow_lod
GL_EXT_window_rectangles
GL_ARB_get_texture_sub_image
GL_ARB_separate_shader_objects
GL_ARB_draw_buffers
GL_ARB_map_buffer_range
GL_ARB_texture_rectangle
GL_EXT_shader_integer_mix
GL_MESA_framebuffer_flip_y
GL_NV_alpha_to_coverage_dither_control
GL_ARB_enhanced_layouts
GL_ARB_shader_image_size
GL_EXT_texture_mirror_clamp
GL_EXT_packed_depth_stencil
GL_KHR_context_flush_control
GL_ARB_texture_stencil8
GL_ARB_vertex_attrib_binding
GL_ARB_timer_query
GL_ARB_texture_cube_map_array
GL_EXT_blend_equation_separate
GL_EXT_texture_filter_anisotropic
GL_AMD_texture_texture4
GL_ARB_internalformat_query2
GL_EXT_texture_swizzle
GL_ARB_blend_func_extended
GL_NV_copy_image
GL_EXT_abgr
GL_AMD_draw_buffers_blend
GL_AMD_pinned_memory
GL_ARB_texture_barrier
GL_ARB_vertex_type_2_10_10_10_rev
GL_ARB_vertex_array_object
GL_ARB_texture_non_power_of_two
GL_AMD_vertex_shader_viewport_index
GL_ARB_shader_texture_lod
GL_AMD_framebuffer_multisample_advanced
GL_EXT_provoking_vertex
GL_ARB_texture_query_levels
GL_ARB_robustness
GL_ARB_copy_image
GL_ARB_texture_view
GL_ARB_color_buffer_float
GL_AMD_conservative_depth
GL_ARB_multi_draw_indirect
GL_ARB_fragment_layer_viewport
GL_ARB_half_float_pixel
GL_ARB_tessellation_shader
GL_EXT_texture_snorm
GL_ARB_sync
GL_EXT_polygon_offset_clamp
GL_AMD_multi_draw_indirect
GL_ARB_map_buffer_alignment
GL_ARB_texture_query_lod
GL_EXT_draw_instanced
GL_KHR_parallel_shader_compile
GL_ARB_explicit_attrib_location
GL_ARB_cull_distance
GL_KHR_texture_compression_astc_sliced_3d
GL_ARB_clear_texture
GL_EXT_framebuffer_blit
GL_ARB_gpu_shader5
GL_ARB_bindless_texture
GL_ANGLE_texture_compression_dxt5
GL_ARB_fragment_coord_conventions
GL_EXT_timer_query
GL_ARB_provoking_vertex
GL_AMD_depth_clamp_separate
GL_EXT_debug_label
GL_ARB_query_buffer_object
GL_ARB_parallel_shader_compile
GL_AMD_vertex_shader_layer
GL_ARB_texture_mirror_clamp_to_edge
GL_EXT_EGL_image_storage
GL_EXT_depth_bounds_test
GL_KHR_debug
GL_AMD_gpu_shader_int64
GL_ARB_vertex_shader
GL_MESA_texture_const_bandwidth
GL_NV_shader_atomic_int64
GL_EXT_pixel_buffer_object
GL_ARB_vertex_attrib_64bit
GL_ARB_internalformat_query
GL_KHR_robustness
GL_ARB_get_program_binary
GL_ARB_post_depth_coverage
GL_AMD_performance_monitor
GL_ARB_shader_subroutine
GL_ARB_arrays_of_arrays
GL_AMD_query_buffer_object
GL_EXT_EGL_image_storage_compression
GL_ARB_direct_state_access
GL_ARB_transform_feedback2
GL_EXT_texture_sRGB_R8
GL_ARB_seamless_cube_map
GL_INTEL_blackhole_render
GL_ARB_shader_clock
GL_AMD_seamless_cubemap_per_texture
GL_ARB_sparse_texture2
GL_ARB_uniform_buffer_object
GL_ARB_framebuffer_sRGB
GL_ARB_base_instance
GL_ATI_texture_mirror_once
GL_ARB_draw_indirect
GL_ARB_compute_variable_group_size
GL_ARB_shader_bit_encoding
GL_ARB_sparse_buffer
GL_ARB_shader_objects
GL_ARB_depth_buffer_float
GL_EXT_texture_array
GL_NV_compute_shader_derivatives
GL_ARB_clip_control
GL_KHR_robust_buffer_access_behavior
GL_ARB_framebuffer_object
GL_EXT_texture_sRGB
GL_ARB_pixel_buffer_object
GL_EXT_shader_image_load_formatted
GL_ARB_shading_language_420pack
GL_ARB_explicit_uniform_location
GL_ARB_transform_feedback_instanced
GL_ARB_shader_atomic_counter_ops
GL_ARB_texture_border_clamp
GL_OES_EGL_image
GL_ARB_draw_elements_base_vertex
GL_EXT_vertex_array_bgra
GL_ARB_stencil_texturing
GL_ARB_texture_storage
GL_ARB_shader_viewport_layer_array
GL_EXT_draw_buffers2
GL_ARB_texture_multisample
GL_EXT_framebuffer_object
GL_EXT_demote_to_helper_invocation
GL_ARB_instanced_arrays
GL_ARB_gl_spirv
GL_ATI_meminfo
GL_ARB_texture_swizzle
GL_ARB_texture_compression_bptc
GL_ARB_compute_shader
GL_EXT_framebuffer_sRGB
GL_ARB_gpu_shader_fp64
GL_KHR_shader_subgroup
GL_ARB_debug_output
GL_ARB_texture_buffer_object
GL_ARB_shader_ballot
GL_MESA_pack_invert
GL_ARB_sample_shading
GL_ARB_gpu_shader_int64
GL_ARB_texture_float
GL_ARB_invalidate_subdata
GL_ARB_sparse_texture
GL_ARB_shader_image_load_store
GL_EXT_texture_compression_rgtc
GL_ARB_shading_language_packing
GL_ARB_depth_clamp
GL_ARB_texture_storage_multisample
GL_KHR_no_error
GL_EXT_texture_integer
GL_ARB_conditional_render_inverted
GL_ARB_framebuffer_no_attachments
GL_ARB_occlusion_query2
GL_ARB_program_interface_query
GL_ARB_vertex_buffer_object
GL_ARB_shader_texture_image_samples
GL_ARB_buffer_storage
GL_ARB_point_sprite
GL_ARB_viewport_array
GL_EXT_transform_feedback
GL_NV_depth_clamp
GL_ARB_sampler_objects
GL_ARB_transform_feedback3
GL_EXT_shader_samples_identical
GL_EXT_semaphore_fd
GL_ARB_robust_buffer_access_behavior
GL_ARB_ES3_2_compatibility
GL_ARB_shader_atomic_counters
GL_ARB_ES3_compatibility
GL_ARB_pipeline_statistics_query
GL_ARB_conservative_depth
QPA OpenGL Detection Info
supportsDesktopGL: true
supportsOpenGLES: true
isQtPreferOpenGLES: false
Detected renderers:
(Supported) AMD Radeon RX 6800 XT (radeonsi, navi21, LLVM 21.1.4, DRM 3.64, 6.17.7-ba01.fc43.x86_64) (4.6 (Core Profile) Mesa 25.2.6)
(Supported) AMD Radeon RX 6800 XT (radeonsi, navi21, LLVM 21.1.4, DRM 3.64, 6.17.7-ba01.fc43.x86_64) (OpenGL ES 3.2 Mesa 25.2.6)
useBufferInvalidation (config option): false
Hardware Information
GPU Acceleration: auto
Memory: 31986 Mb
Number of Cores: 24
Swap Location: /tmp
Built for: sse2
Base instruction set: fma3+avx2
Supported instruction sets: fma3+avx2 avx2 fma3+avx avx fma3+sse4.2 sse4.2 sse4.1 ssse3 sse3 sse2
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
Resource Location: /home/josh/.local/share/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
mutator
plugin_importer
quick_settings_docker
scripter
tenbrushes
tenscripts
workflow_buttons
Display Information
Number of screens: 2
Screen: 0
Name: DP-1
Depth: 32
Scale: 1
Physical DPI102.406
Logical DPI96
Physical Size: 476, 268
Position: 2560, 180
Resolution in pixels: 1920x1080
Manufacturer: Wacom Tech
Model: Cintiq 22
Refresh Rate: 60
Serial Number:
Screen: 1
Name: DP-3
Depth: 32
Scale: 1
Physical DPI108.888
Logical DPI96
Physical Size: 597, 336
Position: 0, 0
Resolution in pixels: 2560x1440
Manufacturer: AOC
Model: Q27G3XMN
Refresh Rate: 180.002
Serial Number:
Color Management Information
Main Window
===
Native window handle: QWidgetWindow(0x560a971775b0, name="MainWindow#1Window")
Configured mode: CanvasSurfaceMode(Rec709g22)
Configured intent: RenderIntent(render_intent_perceptual) supported: true
Actual intent: RenderIntent(render_intent_perceptual)
Active surface description:
Color Space:
Primaries: NamedPrimaries(primaries_srgb)
Transfer Function: NamedTransferFunction(transfer_function_gamma22)
Luminance: Luminance(minLuminance: 0, maxLuminance: 230, referenceLuminance: 230)
Mastering Info: <none>
Selected Profile: Krita Rec. 709 Gamma 2.2
primaries: Rec. 709
transfer: Gamma 2.2
red: xyY(x: 0.639999, y: 0.33001, Y: 0.212644)
green: xyY(x: 0.300008, y: 0.599998, Y: 0.715162)
blue: xyY(x: 0.150002, y: 0.0599968, Y: 0.0721898)
white: xyY(x: 0.312702, y: 0.328999, Y: 0.999995)
Compositor preferred surface description:
Color Space:
Primaries: NamedPrimaries(primaries_bt2020)
Transfer Function: NamedTransferFunction(transfer_function_gamma22)
Luminance: Luminance(minLuminance: 0, maxLuminance: 1150, referenceLuminance: 230)
Mastering Info:
Primaries:
Red: xy(x: 0.677734, y: 0.313477)
Green: xy(x: 0.248047, y: 0.688477)
Blue: xy(x: 0.149414, y: 0.057617)
White: xy(x: 0.3127, y: 0.329)
Luminance: MasteringLuminance(minLuminance: 50, maxLuminance: 1150)
Max CLL: "1150"
Max FALL: "1156"
Document: "document_0" path: "/home/josh/Pictures/Krita Projects/190 rustbucket/rustbucket.kra"
===
Native window handle: QWidgetWindow(0x560aa7d14ef0, name="KisOpenGLCanvas2ClassWindow")
(canvas bit depth report)
Texture Format: 0x8059 ( GL_RGB10_A2 )
FBO Buffer Size: R: 10 G: 10 B: 10 A: 0
Window Buffer Size: R: 10 G: 10 B: 10 A: 0
Global Buffer Size: R: 10 G: 10 B: 10 A: 2
(canvas surface color manager)
Configured mode: CanvasSurfaceMode(Preferred)
Configured intent: RenderIntent(render_intent_perceptual) supported: true
Actual intent: RenderIntent(render_intent_perceptual)
Active surface description:
Color Space:
Primaries: NamedPrimaries(primaries_bt2020)
Transfer Function: NamedTransferFunction(transfer_function_gamma22)
Luminance: Luminance(minLuminance: 0, maxLuminance: 1150, referenceLuminance: 230)
Mastering Info: <none>
Selected Profile: Krita Rec. 2020 Gamma 2.2
primaries: Rec. 2020
transfer: Gamma 2.2
red: xyY(x: 0.708012, y: 0.291994, Y: 0.262696)
green: xyY(x: 0.169997, y: 0.797003, Y: 0.678002)
blue: xyY(x: 0.130998, y: 0.0459965, Y: 0.0592973)
white: xyY(x: 0.312702, y: 0.328999, Y: 0.999995)
Compositor preferred surface description:
Color Space:
Primaries: NamedPrimaries(primaries_bt2020)
Transfer Function: NamedTransferFunction(transfer_function_gamma22)
Luminance: Luminance(minLuminance: 0, maxLuminance: 1150, referenceLuminance: 230)
Mastering Info:
Primaries:
Red: xy(x: 0.677734, y: 0.313477)
Green: xy(x: 0.248047, y: 0.688477)
Blue: xy(x: 0.149414, y: 0.057617)
White: xy(x: 0.3127, y: 0.329)
Luminance: MasteringLuminance(minLuminance: 50, maxLuminance: 1150)
Max CLL: "1150"
Max FALL: "1156"
Screen: "DP-1" "Wacom Tech" "Cintiq 22"
===
Color Space:
Primaries: NamedPrimaries(primaries_srgb)
Transfer Function: NamedTransferFunction(transfer_function_gamma22)
Luminance: Luminance(minLuminance: 100, maxLuminance: 200, referenceLuminance: 200)
Mastering Info:
Primaries:
Red: xy(x: 0.64, y: 0.33)
Green: xy(x: 0.3, y: 0.6)
Blue: xy(x: 0.15, y: 0.06)
White: xy(x: 0.3127, y: 0.329)
Luminance: MasteringLuminance(minLuminance: 100, maxLuminance: 200)
Max CLL: "200"
Max FALL: "200"
Screen: "DP-3" "AOC" "Q27G3XMN" [CURRENT]
===
Color Space:
Primaries: NamedPrimaries(primaries_bt2020)
Transfer Function: NamedTransferFunction(transfer_function_st2084_pq)
Luminance: Luminance(minLuminance: 50, maxLuminance: 10000, referenceLuminance: 230)
Mastering Info:
Primaries:
Red: xy(x: 0.677734, y: 0.313477)
Green: xy(x: 0.248047, y: 0.688477)
Blue: xy(x: 0.149414, y: 0.057617)
White: xy(x: 0.3127, y: 0.329)
Luminance: MasteringLuminance(minLuminance: 50, maxLuminance: 1150)
Max CLL: "1150"
Max FALL: "1156"
Color management plugin report
===
Wayland color management plugin report
Supported Features:
feature_icc_v2_v4: no
feature_parametric: yes
feature_set_primaries: yes
feature_set_tf_power: no
feature_set_luminances: yes
feature_set_mastering_display_primaries: yes
feature_extended_target_volume: yes
feature_windows_scrgb: yes
Supported Render Intents:
render_intent_perceptual: yes
render_intent_relative: yes
render_intent_saturation: no
render_intent_absolute: yes
render_intent_relative_bpc: yes
Supported Transfer Functions:
transfer_function_bt1886: yes
transfer_function_gamma22: yes
transfer_function_gamma28: no
transfer_function_st240: no
transfer_function_ext_linear: yes
transfer_function_log_100: no
transfer_function_log_316: no
transfer_function_xvycc: no
transfer_function_srgb: no
transfer_function_ext_srgb: no
transfer_function_st2084_pq: yes
transfer_function_st428: no
transfer_function_hlg: no
Supported Primaries:
primaries_srgb: yes
primaries_pal_m: yes
primaries_pal: yes
primaries_ntsc: yes
primaries_generic_film: yes
primaries_bt2020: yes
primaries_cie1931_xyz: yes
primaries_dci_p3: yes
primaries_display_p3: yes
primaries_adobe_rgb: yes
Terminal Log
This plugin does not support dynamic OpenGL loading!
This plugin does not support dynamic OpenGL loading!
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
/tmp/.mount_krita-jeIBfL/usr/lib/krita-python-libs/krita added to PYTHONPATH
qrc:/TextAlign.qml:269:9: QML GroupButton: Binding loop detected for property "icon.color":
qrc:/TextAlign.qml:275:13
qrc:/TextAlign.qml:252:13: QML GroupButton: Binding loop detected for property "icon.color":
qrc:/TextAlign.qml:260:17
qrc:/TextAlign.qml:238:13: QML GroupButton: Binding loop detected for property "icon.color":
qrc:/TextAlign.qml:245:17
qrc:/TextAlign.qml:225:13: QML GroupButton: Binding loop detected for property "icon.color":
qrc:/TextAlign.qml:233:17
qrc:/TextAlign.qml:269:9: QML GroupButton: Binding loop detected for property "icon.color":
qrc:/TextAlign.qml:275:13
qrc:/TextAlign.qml:252:13: QML GroupButton: Binding loop detected for property "icon.color":
qrc:/TextAlign.qml:260:17
qrc:/TextAlign.qml:238:13: QML GroupButton: Binding loop detected for property "icon.color":
qrc:/TextAlign.qml:245:17
qrc:/TextAlign.qml:225:13: QML GroupButton: Binding loop detected for property "icon.color":
qrc:/TextAlign.qml:233:17
qrc:/TextIndent.qml:102:9: QML RowLayout: Binding loop detected for property "height"
qrc:/TextIndent.qml:102:9: QML RowLayout: Binding loop detected for property "height"
FPS-DEBUG: Frame compression mode: two frames (default)
qt.qpa.wayland: eglSwapBuffers failed with 0x300d, surface: 0x0
The imageRectInWidgetPixels topLeft() does not match the documentOffsetF!
imageRectInWidgetPixels: QRectF(-0.6,-0.6 0x0)
documentOffsetF: QPointF(1,1)
corrected offset: QPointF(-41,0)
I’ll try to encorporate the fix next week! 
