Bug#1070972: epiphany-browser fails to render webpages - blank pages

[Dennis Camera]

Control: found 1070972 epiphany-browser/43.1-1

Hi,

I am seeing the same bug with Epiphany 43.1 on Debian bookworm (12.5)
since upgrading libwebkit2gtk-4.1-0 from version 2.42.5 to 2.44.2.

I attached the output of webkit://gpu at the end of this e-mail.

Other applications also using WebKitGTK (namely Evolution) are not
affected (on my system at least) and still display HTML e-mail correctly.

As a workaround setting the WEBKIT_DISABLE_DMABUF_RENDERER=1
environment variable restores the display of web pages in the Epiphany
browser.

Kind regards,

Dennis


{
    "Version Information": {
        "WebKit version": "WebKitGTK 2.44.2 (tarball)",
        "Operating system": "Linux 6.1.0-21-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.90-1 (2024-05-03) x86_64",
        "Desktop": "MATE",
        "Cairo version": "1.16.0 (build) 1.16.0 (runtime)",
        "GStreamer version": "1.22.0 (build) GStreamer 1.22.0 (runtime)",
        "GTK version": "3.24.38 (build) 3.24.38 (runtime)"
    },
    "Display Information": {
        "Identifier": "1",
        "Type": "X11",
        "Screen geometry": "0,0 1440x900",
        "Screen work area": "0,24 1440x852",
        "Depth": "24",
        "Bits per color component": "8",
        "Font Scaling DPI": "96.0244140625",
        "Screen DPI": "110.48275454819004",
        "VBlank type": "Timer",
        "VBlank refresh rate": "60Hz",
        "DRM Device": "/dev/dri/card0",
        "DRM Render Node": "/dev/dri/renderD128"
    },
    "API": "OpenGL (libepoxy)",
    "Hardware Acceleration Information": {
        "Policy": "on demand",
        "WebGL enabled": "Yes",
        "Renderer": "DMABuf (Supported buffers: Hardware, Shared Memory)",
        "Native interface": "None"
    },
    "Hardware Acceleration Information (Render process)": {
        "Platform": "GBM",
        "GL_RENDERER": "NVAC",
        "GL_VENDOR": "nouveau",
        "GL_VERSION": "OpenGL ES 3.0 Mesa 22.3.6",
        "GL_SHADING_LANGUAGE_VERSION": "OpenGL ES GLSL ES 3.00",
        "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_AMD_performance_monitor 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_ANGLE_pack_reverse_row_order GL_ANGLE_texture_compression_dxt3
GL_ANGLE_texture_compression_dxt5 GL_EXT_occlusion_query_boolean
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_map_buffer_range
GL_KHR_debug GL_KHR_texture_compression_astc_ldr
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_integer_mix
GL_EXT_base_instance GL_EXT_compressed_ETC1_RGB8_sub_texture
GL_EXT_copy_image GL_EXT_draw_elements_base_vertex
GL_EXT_polygon_offset_clamp GL_EXT_texture_border_clamp
GL_KHR_context_flush_control GL_NV_shader_noperspective_interpolation
GL_OES_copy_image GL_OES_draw_elements_base_vertex
GL_OES_texture_border_clamp GL_OES_texture_stencil8
GL_EXT_blend_func_extended GL_EXT_float_blend 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_EXT_clip_cull_distance
GL_EXT_disjoint_timer_query GL_EXT_texture_compression_s3tc_srgb
GL_EXT_window_rectangles GL_MESA_shader_integer_functions
GL_EXT_clip_control GL_EXT_color_buffer_half_float
GL_EXT_texture_compression_bptc GL_EXT_texture_mirror_clamp_to_edge
GL_KHR_parallel_shader_compile GL_EXT_EGL_image_storage
GL_MESA_framebuffer_flip_y GL_EXT_depth_clamp GL_MESA_bgra ",
        "EGL_VERSION": "1.4",
        "EGL_VENDOR": "Mesa Project",
        "EGL_EXTENSIONS": "EGL_EXT_device_base
EGL_EXT_device_enumeration EGL_EXT_device_query
EGL_EXT_platform_base EGL_KHR_client_get_all_proc_addresses
EGL_EXT_client_extensions EGL_KHR_debug EGL_EXT_platform_device
EGL_EXT_platform_wayland EGL_KHR_platform_wayland
EGL_EXT_platform_x11 EGL_KHR_platform_x11 EGL_EXT_platform_xcb
EGL_MESA_platform_gbm EGL_KHR_platform_gbm
EGL_MESA_platform_surfaceless EGL_ANDROID_blob_cache EGL_EXT_buffer_age
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_drm_image
EGL_MESA_image_dma_buf_export EGL_MESA_query_driver
EGL_WL_bind_wayland_display "
    }
}