Bug#1052055: Webkit output fully white

[R Pi]

There you go:

{
    "Version Information": {
        "WebKit version": "WebKitGTK 2.42.1 (tarball)",
        "Operating system": "Linux 6.5.0-1-amd64 #1 SMP
PREEMPT_DYNAMIC Debian 6.5.3-1 (2023-09-13) x86_64",
        "Desktop": "GNOME",
        "Cairo version": "1.18.0 (build) 1.18.0 (runtime)",
        "GStreamer version": "1.22.6 (build) GStreamer 1.22.6 (runtime)",
        "GTK version": "3.24.38 (build) 3.24.38 (runtime)"
    },
    "Display Information": {
        "Type": "X11",
        "Screen geometry": "0,0 3840x1080",
        "Screen work area": "0,32 3840x1016",
        "Depth": "24",
        "Bits per color component": "8",
        "DPI": "96",
        "DRM Device": "/dev/dri/card0",
        "DRM Render Node": "/dev/dri/renderD128"
    },
    "API": "OpenGL (libepoxy)",
    "Hardware Acceleration Information": {
        "Policy": "always",
        "WebGL enabled": "Yes",
        "Renderer": "DMABuf (Supported buffers: Hardware, Shared Memory)",
        "Native interface": "None"
    },
    "Hardware Acceleration Information (Render process)": {
        "Platform": "GBM",
        "GL_RENDERER": "llvmpipe (LLVM 16.0.6, 256 bits)",
        "GL_VENDOR": "Mesa",
        "GL_VERSION": "OpenGL ES 3.2 Mesa 23.2.1-1",
        "GL_SHADING_LANGUAGE_VERSION": "OpenGL ES GLSL ES 3.20",
        "GL_EXTENSIONS": "GL_EXT_blend_minmax GL_EXT_multi_draw_arrays
GL_EXT_texture_filter_anisotropic GL_EXT_texture_compression_s3tc
GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc
GL_EXT_texture_format_BGRA8888 GL_OES_compressed_ETC1_RGB8_texture
GL_OES_depth24 GL_OES_element_index_uint GL_OES_fbo_render_mipmap
GL_OES_mapbuffer GL_OES_rgb8_rgba8 GL_OES_standard_derivatives
GL_OES_stencil8 GL_OES_texture_3D GL_OES_texture_float
GL_OES_texture_float_linear GL_OES_texture_half_float
GL_OES_texture_half_float_linear GL_OES_texture_npot
GL_OES_vertex_half_float GL_EXT_draw_instanced
GL_EXT_texture_sRGB_decode GL_OES_EGL_image GL_OES_depth_texture
GL_OES_packed_depth_stencil GL_EXT_texture_type_2_10_10_10_REV
GL_NV_conditional_render GL_OES_get_program_binary
GL_APPLE_texture_max_level GL_EXT_discard_framebuffer
GL_EXT_read_format_bgra GL_NV_pack_subimage GL_EXT_frag_depth
GL_NV_fbo_color_attachments GL_OES_EGL_image_external GL_OES_EGL_sync
GL_OES_vertex_array_object GL_OES_viewport_array
GL_ANGLE_pack_reverse_row_order GL_ANGLE_texture_compression_dxt3
GL_ANGLE_texture_compression_dxt5 GL_EXT_occlusion_query_boolean
GL_EXT_robustness GL_EXT_texture_rg GL_EXT_unpack_subimage
GL_NV_draw_buffers GL_NV_read_buffer GL_NV_read_depth
GL_NV_read_depth_stencil GL_NV_read_stencil GL_EXT_draw_buffers
GL_EXT_instanced_arrays GL_EXT_map_buffer_range GL_KHR_debug
GL_KHR_robustness GL_KHR_texture_compression_astc_ldr
GL_NV_generate_mipmap_sRGB GL_NV_pixel_buffer_object
GL_OES_depth_texture_cube_map GL_OES_required_internalformat
GL_OES_surfaceless_context GL_EXT_color_buffer_float
GL_EXT_debug_label GL_EXT_sRGB_write_control
GL_EXT_separate_shader_objects GL_EXT_shader_framebuffer_fetch
GL_EXT_shader_group_vote GL_EXT_shader_implicit_conversions
GL_EXT_shader_integer_mix GL_EXT_tessellation_point_size
GL_EXT_tessellation_shader GL_ANDROID_extension_pack_es31a
GL_ARM_shader_framebuffer_fetch_depth_stencil GL_EXT_base_instance
GL_EXT_compressed_ETC1_RGB8_sub_texture GL_EXT_copy_image
GL_EXT_draw_buffers_indexed GL_EXT_draw_elements_base_vertex
GL_EXT_gpu_shader5 GL_EXT_polygon_offset_clamp
GL_EXT_primitive_bounding_box GL_EXT_render_snorm
GL_EXT_shader_io_blocks GL_EXT_texture_border_clamp
GL_EXT_texture_buffer GL_EXT_texture_cube_map_array
GL_EXT_texture_norm16 GL_EXT_texture_view
GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
GL_KHR_context_flush_control GL_KHR_robust_buffer_access_behavior
GL_NV_image_formats GL_NV_shader_noperspective_interpolation
GL_OES_copy_image GL_OES_draw_buffers_indexed
GL_OES_draw_elements_base_vertex GL_OES_gpu_shader5
GL_OES_primitive_bounding_box GL_OES_sample_shading
GL_OES_sample_variables GL_OES_shader_io_blocks
GL_OES_shader_multisample_interpolation GL_OES_tessellation_point_size
GL_OES_tessellation_shader GL_OES_texture_border_clamp
GL_OES_texture_buffer GL_OES_texture_cube_map_array
GL_OES_texture_stencil8 GL_OES_texture_storage_multisample_2d_array
GL_OES_texture_view GL_EXT_blend_func_extended GL_EXT_buffer_storage
GL_EXT_float_blend GL_EXT_geometry_point_size GL_EXT_geometry_shader
GL_EXT_texture_filter_minmax GL_EXT_texture_sRGB_R8
GL_EXT_texture_sRGB_RG8 GL_KHR_no_error
GL_KHR_texture_compression_astc_sliced_3d
GL_OES_EGL_image_external_essl3 GL_OES_geometry_point_size
GL_OES_geometry_shader GL_OES_shader_image_atomic GL_EXT_clear_texture
GL_EXT_clip_cull_distance GL_EXT_disjoint_timer_query
GL_EXT_texture_compression_s3tc_srgb GL_MESA_shader_integer_functions
GL_EXT_clip_control GL_EXT_color_buffer_half_float
GL_EXT_memory_object GL_EXT_memory_object_fd
GL_EXT_texture_compression_bptc GL_EXT_texture_mirror_clamp_to_edge
GL_KHR_parallel_shader_compile GL_EXT_EGL_image_storage
GL_EXT_shader_framebuffer_fetch_non_coherent GL_EXT_texture_shadow_lod
GL_MESA_framebuffer_flip_y GL_EXT_depth_clamp GL_EXT_texture_query_lod
GL_MESA_bgra ",
        "EGL_VERSION": "1.5",
        "EGL_VENDOR": "Mesa Project",
        "EGL_EXTENSIONS": "EGL_EXT_platform_base EGL_EXT_device_base
EGL_EXT_device_enumeration EGL_EXT_device_query
EGL_KHR_client_get_all_proc_addresses EGL_EXT_client_extensions
EGL_KHR_debug EGL_KHR_platform_x11 EGL_EXT_platform_x11
EGL_EXT_platform_device EGL_MESA_platform_surfaceless
EGL_EXT_explicit_device EGL_KHR_platform_wayland
EGL_EXT_platform_wayland EGL_EXT_platform_xcb EGL_MESA_platform_gbm
EGL_KHR_platform_gbm EGL_ANDROID_blob_cache EGL_EXT_buffer_age
EGL_EXT_create_context_robustness EGL_EXT_image_dma_buf_import
EGL_EXT_image_dma_buf_import_modifiers EGL_KHR_cl_event2
EGL_KHR_config_attribs EGL_KHR_context_flush_control
EGL_KHR_create_context EGL_KHR_create_context_no_error
EGL_KHR_fence_sync EGL_KHR_get_all_proc_addresses
EGL_KHR_gl_colorspace EGL_KHR_gl_renderbuffer_image
EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_3D_image
EGL_KHR_gl_texture_cubemap_image EGL_KHR_image EGL_KHR_image_base
EGL_KHR_image_pixmap EGL_KHR_no_config_context EGL_KHR_reusable_sync
EGL_KHR_surfaceless_context EGL_EXT_pixel_format_float
EGL_KHR_wait_sync EGL_MESA_configless_context
EGL_MESA_image_dma_buf_export EGL_MESA_query_driver "
    }
}

On Mon, Oct 9, 2023 at 12:23 PM Alberto Garcia <berto at igalia.com> wrote:
>
> On Mon, Oct 09, 2023 at 12:15:27PM +0200, R Pi wrote:
> > Thing is I don't think I could do it without the environment
> > variables because I still get full white output when not using them,
> > and wouldn't be able to browse to the webkit://gpu page
>
> You can try to click the "Copy to clipboard" button even if you don't
> see it (use the env variables to see the location).
>
> Berto



-- 
- Romain