[Octave-bug-tracker] [bug #62660] Cannot see a plot on qt graphics on 7.1.0 windows

[Tatsuro MATSUOKA]

Follow-up Comment #2, bug #62660 (project octave):

For 7.1.0


>> __opengl_info__
warning: __opengl_info__: can not obtain OpenGL information
warning: called from
    __opengl_info__ at line 65 column 5


For 6.4.0


>> __opengl_info__
   version: 3.1 Mesa 20.1.10
    vendor: VMware, Inc.
  renderer: llvmpipe (LLVM 7.1.0, 128 bits)
extensions:
  GL_ARB_multisample
  GL_EXT_abgr
  GL_EXT_bgra
  GL_EXT_blend_color
  GL_EXT_blend_minmax
  GL_EXT_blend_subtract
  GL_EXT_copy_texture
  GL_EXT_subtexture
  GL_EXT_texture_object
  GL_EXT_vertex_array
  GL_EXT_compiled_vertex_array
  GL_EXT_texture
  GL_EXT_texture3D
  GL_IBM_rasterpos_clip
  GL_ARB_point_parameters
  GL_EXT_draw_range_elements
  GL_EXT_packed_pixels
  GL_EXT_point_parameters
  GL_EXT_rescale_normal
  GL_EXT_separate_specular_color
  GL_EXT_texture_edge_clamp
  GL_SGIS_generate_mipmap
  GL_SGIS_texture_border_clamp
  GL_SGIS_texture_edge_clamp
  GL_SGIS_texture_lod
  GL_ARB_framebuffer_sRGB
  GL_ARB_multitexture
  GL_EXT_framebuffer_sRGB
  GL_IBM_multimode_draw_arrays
  GL_IBM_texture_mirrored_repeat
  GL_ARB_texture_cube_map
  GL_ARB_texture_env_add
  GL_ARB_transpose_matrix
  GL_EXT_blend_func_separate
  GL_EXT_fog_coord
  GL_EXT_multi_draw_arrays
  GL_EXT_secondary_color
  GL_EXT_texture_env_add
  GL_EXT_texture_lod_bias
  GL_INGR_blend_func_separate
  GL_NV_blend_square
  GL_NV_light_max_exponent
  GL_NV_texgen_reflection
  GL_NV_texture_env_combine4
  GL_S3_s3tc
  GL_SUN_multi_draw_arrays
  GL_ARB_texture_border_clamp
  GL_ARB_texture_compression
  GL_EXT_framebuffer_object
  GL_EXT_texture_compression_s3tc
  GL_EXT_texture_env_combine
  GL_EXT_texture_env_dot3
  GL_MESA_window_pos
  GL_NV_packed_depth_stencil
  GL_NV_texture_rectangle
  GL_ARB_depth_texture
  GL_ARB_occlusion_query
  GL_ARB_shadow
  GL_ARB_texture_env_combine
  GL_ARB_texture_env_crossbar
  GL_ARB_texture_env_dot3
  GL_ARB_texture_mirrored_repeat
  GL_ARB_window_pos
  GL_ATI_fragment_shader
  GL_EXT_stencil_two_side
  GL_EXT_texture_cube_map
  GL_NV_depth_clamp
  GL_NV_fog_distance
  GL_APPLE_packed_pixels
  GL_ARB_draw_buffers
  GL_ARB_fragment_program
  GL_ARB_fragment_shader
  GL_ARB_shader_objects
  GL_ARB_vertex_program
  GL_ARB_vertex_shader
  GL_ATI_draw_buffers
  GL_ATI_texture_env_combine3
  GL_ATI_texture_float
  GL_EXT_shadow_funcs
  GL_EXT_stencil_wrap
  GL_MESA_pack_invert
  GL_MESA_ycbcr_texture
  GL_NV_primitive_restart
  GL_ARB_depth_clamp
  GL_ARB_fragment_program_shadow
  GL_ARB_half_float_pixel
  GL_ARB_occlusion_query2
  GL_ARB_point_sprite
  GL_ARB_shading_language_100
  GL_ARB_sync
  GL_ARB_texture_non_power_of_two
  GL_ARB_vertex_buffer_object
  GL_ATI_blend_equation_separate
  GL_EXT_blend_equation_separate
  GL_OES_read_format
  GL_ARB_color_buffer_float
  GL_ARB_pixel_buffer_object
  GL_ARB_texture_compression_rgtc
  GL_ARB_texture_float
  GL_ARB_texture_rectangle
  GL_ATI_texture_compression_3dc
  GL_EXT_packed_float
  GL_EXT_pixel_buffer_object
  GL_EXT_texture_compression_dxt1
  GL_EXT_texture_compression_rgtc
  GL_EXT_texture_mirror_clamp
  GL_EXT_texture_rectangle
  GL_EXT_texture_sRGB
  GL_EXT_texture_shared_exponent
  GL_ARB_framebuffer_object
  GL_EXT_framebuffer_blit
  GL_EXT_framebuffer_multisample
  GL_EXT_packed_depth_stencil
  GL_ARB_vertex_array_object
  GL_ATI_separate_stencil
  GL_ATI_texture_mirror_once
  GL_EXT_draw_buffers2
  GL_EXT_draw_instanced
  GL_EXT_gpu_program_parameters
  GL_EXT_gpu_shader4
  GL_EXT_texture_array
  GL_EXT_texture_compression_latc
  GL_EXT_texture_integer
  GL_EXT_texture_sRGB_decode
  GL_EXT_timer_query
  GL_OES_EGL_image
  GL_EXT_texture_buffer_object
  GL_AMD_texture_texture4
  GL_ARB_copy_buffer
  GL_ARB_depth_buffer_float
  GL_ARB_draw_instanced
  GL_ARB_half_float_vertex
  GL_ARB_instanced_arrays
  GL_ARB_map_buffer_range
  GL_ARB_texture_buffer_object
  GL_ARB_texture_rg
  GL_ARB_texture_swizzle
  GL_ARB_vertex_array_bgra
  GL_EXT_texture_swizzle
  GL_EXT_vertex_array_bgra
  GL_NV_conditional_render
  GL_AMD_conservative_depth
  GL_AMD_draw_buffers_blend
  GL_AMD_seamless_cubemap_per_texture
  GL_AMD_shader_stencil_export
  GL_ARB_ES2_compatibility
  GL_ARB_blend_func_extended
  GL_ARB_compatibility
  GL_ARB_debug_output
  GL_ARB_draw_buffers_blend
  GL_ARB_draw_elements_base_vertex
  GL_ARB_explicit_attrib_location
  GL_ARB_fragment_coord_conventions
  GL_ARB_provoking_vertex
  GL_ARB_sampler_objects
  GL_ARB_seamless_cube_map
  GL_ARB_shader_stencil_export
  GL_ARB_shader_texture_lod
  GL_ARB_texture_buffer_object_rgb32
  GL_ARB_texture_cube_map_array
  GL_ARB_texture_gather
  GL_ARB_texture_multisample
  GL_ARB_texture_query_lod
  GL_ARB_texture_rgb10_a2ui
  GL_ARB_uniform_buffer_object
  GL_ARB_vertex_type_2_10_10_10_rev
  GL_EXT_provoking_vertex
  GL_EXT_texture_snorm
  GL_MESA_texture_signed_rgba
  GL_NV_copy_image
  GL_ARB_draw_indirect
  GL_ARB_get_program_binary
  GL_ARB_robustness
  GL_ARB_separate_shader_objects
  GL_ARB_shader_bit_encoding
  GL_ARB_shader_subroutine
  GL_ARB_texture_compression_bptc
  GL_ARB_timer_query
  GL_ARB_transform_feedback2
  GL_ARB_transform_feedback3
  GL_ARB_viewport_array
  GL_EXT_direct_state_access
  GL_AMD_multi_draw_indirect
  GL_ANGLE_texture_compression_dxt3
  GL_ANGLE_texture_compression_dxt5
  GL_ARB_base_instance
  GL_ARB_compressed_texture_pixel_storage
  GL_ARB_conservative_depth
  GL_ARB_internalformat_query
  GL_ARB_map_buffer_alignment
  GL_ARB_shader_atomic_counters
  GL_ARB_shader_image_load_store
  GL_ARB_shading_language_420pack
  GL_ARB_shading_language_packing
  GL_ARB_texture_storage
  GL_ARB_transform_feedback_instanced
  GL_EXT_framebuffer_multisample_blit_scaled
  GL_EXT_transform_feedback
  GL_AMD_query_buffer_object
  GL_AMD_shader_trinary_minmax
  GL_ARB_ES3_compatibility
  GL_ARB_arrays_of_arrays
  GL_ARB_clear_buffer_object
  GL_ARB_copy_image
  GL_ARB_explicit_uniform_location
  GL_ARB_fragment_layer_viewport
  GL_ARB_framebuffer_no_attachments
  GL_ARB_invalidate_subdata
  GL_ARB_multi_draw_indirect
  GL_ARB_program_interface_query
  GL_ARB_shader_image_size
  GL_ARB_shader_storage_buffer_object
  GL_ARB_stencil_texturing
  GL_ARB_texture_buffer_range
  GL_ARB_texture_query_levels
  GL_ARB_texture_storage_multisample
  GL_ARB_texture_view
  GL_ARB_vertex_attrib_binding
  GL_KHR_debug
  GL_KHR_texture_compression_astc_ldr
  GL_ARB_buffer_storage
  GL_ARB_clear_texture
  GL_ARB_enhanced_layouts
  GL_ARB_indirect_parameters
  GL_ARB_internalformat_query2
  GL_ARB_multi_bind
  GL_ARB_query_buffer_object
  GL_ARB_seamless_cubemap_per_texture
  GL_ARB_shader_draw_parameters
  GL_ARB_shader_group_vote
  GL_ARB_shading_language_include
  GL_ARB_texture_mirror_clamp_to_edge
  GL_ARB_texture_stencil8
  GL_ARB_vertex_type_10f_11f_11f_rev
  GL_EXT_shader_integer_mix
  GL_ARB_clip_control
  GL_ARB_conditional_render_inverted
  GL_ARB_cull_distance
  GL_ARB_derivative_control
  GL_ARB_direct_state_access
  GL_ARB_get_texture_sub_image
  GL_ARB_pipeline_statistics_query
  GL_ARB_transform_feedback_overflow_query
  GL_EXT_polygon_offset_clamp
  GL_KHR_context_flush_control
  GL_ARB_parallel_shader_compile
  GL_ARB_shader_atomic_counter_ops
  GL_KHR_no_error
  GL_KHR_texture_compression_astc_sliced_3d
  GL_MESA_shader_integer_functions
  GL_ARB_polygon_offset_clamp
  GL_KHR_parallel_shader_compile
  GL_EXT_EGL_image_storage
  GL_EXT_texture_sRGB_R8
  GL_EXT_EGL_sync






























































































































































































































































































































































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